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Can anyone tell me how to scan all available channels on a samsung
PN50B850 and an 4228 with rotor.....I can scan in the channels the antenna is looking at but when I change rotor position and rescan to get more I loose the original scanned channels.

Any way to get them all?

Thanks
 

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Check to see whether there is a way on your TV to add channels without doing a full channel scan. It may be part of the remove channel capabilities. It also will probably be necessary to select the physical channel number rather than the virtual channel number.
 

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Concurred with above: Check to see if there's an "add digital channels" feature, which most ATSC-capable sets have.
 

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With my Panasonic in order not to delete previous findings. I do a partial scan, just a "digital only" scan. If I do a full analog/digital scan. It deletes my previous settings.

Now, we my newer Toshiba TV. I can scan each rf individualily. But If i do any scan. It deletes the previous channels findings.

Read ya l8r,
Al

PS. Both of the TVs are buggy.
Like in order find with something with the Panasonic. I need to do a "digital scan" Which can take 10 mins.

The Toshiba has serious remapping issues.
 

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I have the same exact tv model. Scan channels in all directions. Take note the channels numbers. Scan the direction with the most channels at last. Then, add all other channels available manually with the remote. Ex.: to add CBC HD Montréal, you can enter "20" or "6-1" on your remote. Each channel with an acceptable signal can be added to the list this way.

By the way, this is a great tv. I like it very much.
 

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Discussion Starter #6
Not working out for me i can scan in cbc 5-1 pointing west but can't add it manually after i scan to the south which gets most of my channels i can only input air channels manual but not dtv?:confused:
 

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It's because you must put your antenna in the optimun direction for the hd channel you want to add before trying to add manually this channel. If the channel to add is north, point your antenna to the north.
 

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Remember that 5-1 is the virtual channel number which your TV doesn't know until it tunes to the physical channel number. This is why you have to scan. The TV (or ATSC tuner/decoder) tunes to the physical channel, locks on to the digital signal and decodes it, then extracts the virtual channel. All so TV stations could keep their branding!

For the Toronto / Hamilton / Buffalo / Rochester area the following are the physical channels:
Code:
7  WNGS   Concord (Buffalo)
10 NBC    Rochester
13 ABC    Rochester
14 Fox    Grand Island (Buffalo)
15 Sun    Hamilton
16 PBS    Rochester
18 CHCH   Hamilton
20 CBC    CN Tower (Toronto)
23 ION    Batavia (Buffalo)
24 SRC    CN Tower (Toronto)
26 TCT    Jamestown
28 Fox    Rochester
32 CW     Grand Island (Buffalo)
33 NBC    South Wales (Buffalo)
35 CITS   Hamilton
38 ABC    Colden (Buffalo)
39 CBS    Colden (Buffalo)
40 CTV    CN Tower (Toronto)
43 PBS    Grand Island (Buffalo)
44 OMNI2  First Canadian Place (Toronto)
45 CBS    Rochester
49 MyTV   Wyoming (Buffalo)
53 City   CN Tower (Toronto)
64 OMNI1  First Canadian Place (Toronto)
65 Global CN Tower (Toronto)
66 Sun    CN Tower (Toronto)
 

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Can anyone tell me how to scan all available channels on a samsung
PN50B850 and an 4228 with rotor.....I can scan in the channels the antenna is looking at but when I change rotor position and rescan to get more I loose the original scanned channels.

Any way to get them all?

Thanks
All Samsung's do this.... I have a Plasma & LCD, and if you do a full scan it will make a complete new list of what it found on the new scan. So it clears out the old, adds in the new. I end up scanning at one area with the rotor, then turning and manually adding channels by tunning to thier physical channel. (not virtual). This then gets tricky once you have virtual channels programmed to a channel that you want to scan its physical. I end up having to add them in the correct order...

All tv's should have a utility where you can simply scan by RF frequency and watch the signal meter as you move around the rotor like alot of the STB's have.
 

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digital rocks...
That sounds crappy the way you have to scan channels with a samsung. I have a sony bravia and it has two scan modes one for a total channel scan and then one for just digital, when you do the total scan it deletes what it previously had but when you do just the digital scan it simply adds to what it has already found, sounds a bit easier than having to manually enter in the channels and ya i can see how that can get a little tricky if theres already a channel asigned to a number. I agree with you though that there should be a utility for scanning all channels on there physical number, because even on my sony once a channel is saved, and say there's another channel on the physical number that ones already saved to that virtual number when i go to my signal analizer in the menu it only will go to the virtual one (example: abc buffalo physical number 38 virtual 7.1, so when i go and try to tune in physical 7 which is WNGS buffalo i can't because it just tunes the abc virtual channel...) Thanks for the info on the samsungs though i was thinking of maybe getting one as a second tv but now maybe not... To bad no stores have OTA tv setup so you can try out the scanning and mapping of said tv before purchase. That be to easy i guess
 

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I have Samsung t.v. and have similar issue. I'll give an example of what I do to get around it.

RF channel 32 (WNLO) maps to 23-1. If I want to scan for RF 23 after WNLO (RF 32) was added, I'll enter 23-0 on my remote, then go to any existing digital channel with a signal. Once on that existing digital channel I'll hit the 'prev-ch' button, this should take you back to 23. If you see DTV-AIR 23 in the OSD it should be looking for a digital signal of RF channel 23. If a digital signal isn't found it'll revert to Analog 23, if there's still no signal you should see a grainy screen.

So to recap:
1. Enter 23-0 on remote.
2. Once at 23-0 switch to an existing digital channel that has a working signal.
3. Once at that existing channel, hit 'prev-ch' (channel return) on your remote.
4. Look for the word 'DTV-AIR' followed by the channel number.
5. If 'DTV-AIR' appeared then an attempt to find a digital signal is being made.

I've used this method to scan for WPXJ on channel 23.
I hope this is able to help the poster.
 

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This has been a major problem with digital television for me, so I'm glad to see it mentioned.

Some good potential solutions have been offered (i.e. manually keying individual frequencies to attempt a search), but my experience with digital televisions has shown that the engineers did not really consider real-world usage when they made the scanning modes, especially for fringe locations. My own tv, a "Westinghouse" model did offer a "custom" scanning mode in which you could choose to just scan a certain range of frequencies. This was cumbersome to use, but worked well since it didn't throw out anything outside that range whether or not it found new channels or not. Unfortunately, the tv screen turned magenta (apparently a common failure mode with LCD screens as I've experienced 3 of them) and required warranty replacement. The replacement was a newer model, but it had NO custom scan (and no program guide, wtf?). I have tried manually typing in analog frequencies, but have thus far had no success in adding new channels without a complete rescanning. You cross your fingers and hope that you don't lose channels. I've found that each brand has its own tricks in order to obtain new channels, but in my experience none of them are actually designed with directional reception in mind. It's a shame, really, because while digital broadcasting brings many benefits, the switch has shown that electronics manufacturers no longer understand how people actually use their off-air televisions. Unless you get by with an omni antenna OR all your channels are in a single direction, the tuners are a pain to live with.

I will add as a sidenote that the digital tuner in my replacement television does perform better than the one in the original. It's not all good, though, because the new tuner will blank entirely in harsh conditions while the old one would still show choppy, artifact-laden scenes, but overall it's an improvement because it picks up channels which the old tuner never managed to detect at all and generally offers more viewable channels than the old one did. Neither of my Westinghouse tv's have had useful signal meters, though, so I can't recommend the brand. My point is that tuners have improved even on off-brand equipment and I hope that manual/custom scanning feature will also continue to improve as companies relearn the art of off-air broadcast television. This is an extremely frustrating reality, however, since you pay a lot of money for a modern television and usually only later find out how well the tuner and scanning modes are designed.

<rant on> My reception could be improved by buying/building a higher-gain antenna, but my channels come from a number of compass directions and thus I don't want more directivity simply because my television tuner would require constant rescans. I just put up with marginal reception and regular blackouts on certain channels rather than improve my reception. What good is an antenna rotator when the television has to be rescanned each time you rotate? It is actually difficult to compare retail or DIY antennas when directivity is considered, because the design goal is usually the highest forward gain. I know that less gain equals less directivity, but unless the very generous people on this forum post 3D "flower" charts for a range of frequencies it's hard to know which antennas best fit my needs. I guess I should be willing to experiment more instead of wanting easy answers ;). <rant off>

Please continue to post ideas and/or tuner brands that are better for directional scanning. It may be helpful to know for those in the market for a television. Thanks.
 

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My Sharp Aquos will overwrite previous memories when you re-scan and there is no way of manually entering digital channels. Big thumbs down to the engineers on that one!

However, I have an outboard DVB/ATSC receiver that maintains all channels in memory regardless of how many scans you do. It comes in handy during tropo events.
 

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No industry-wide standard

Suffice it to say that there is no standard methodology across the ATSC tuner marketplace for how to handle the rotor-overwritten channels problem. Some ATSC devices handle it gracefully in a consumer-friendly way, others... not so good.

This topic illustrates one of the great features of an HTPC-based OTA tuner system like MythTV or a similar product, which allows you to mix and match channels as you please. I won't get into the details of that here since the Home Theatre Personal Computer (HTPC) and Media Extenders Forum has so many rich threads about such devices.
 

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How does the channel scanning work in 2015 when you have a rotor? I see the newest post here is 5 years old. It seems that Sony TVs had add-on scan 5 years ago. Has the situation become any better? or worse? I have been planning to replace my 32" TV with a ~40" for some time now anyway, so any particular brands/models to look for?

My current TV does not have an add-on scan so i would have to re-scan every time i rotate the antenna. I do have an Access HD DTA1030 digital to analog TV converter that i used to use with my 1980s tube-TV - it has an add-on scan. Perhaps i could use it, but might lose the digital quality.

Here's my TVFool report: TV Fool
 

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Mick, I see you are a busy guy...:)
I think ya wanna look for a TV that allows you to add/remove channels
manually. My 2009 LG TV can do that no problem.
Recently we bought a smaller 2015 LG TV for the mother in law.
And that one has pretty much the same menu structure / options as the larger 2009 model
I don't believe it is in the "Smart TV" class. Though I am not sure if that would matter in the case of LG.
We have a Samsung in the house also, and that one is fair in the tuner options department, but I think I like the LG's way of doing it better.
The Samsung does have better Over The Air EPG support though...

Whatever ya do, play around with the remote in the store and see what it takes to access the channel scan functions. Look for the ability to add /remove channels without having to do a full channel scan.
 
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