Just received my Philips DVDR3505/37 DVD recorder with SDTV tuner in the mail yesterday. It's a refurbished unit from Factory Direct online.
The unit did not come with a manual, but you can find one on Philips USA website.
I haven't had a chance to test out the record function, my focus last night was mainly on checking the strength of the tuner.
The initial scan for channels picked up both analog stations and digital stations. To switch between analog and digital you have to press the "DTV/TV" button on the remote.
Using my attic installed CM4221 and AP4700 preamp, the tuner held up pretty well in a head-to-head competition with my Samsung SIR-T451. It received all of the channels that I normally receive on the Samsung.
Channel surfing is pretty slow on this unit, as it is on the Samsung (a fact of life with most DTV tuners, I guess?).
Unlike the Samsung, the Philips does not have a signal strength meter, AFAIK
One advantage the Philips has over the Samsung is that you have direct access to sub channels using the remote (e.g., press "7" + "." + "2" to get channel 7-2, WNGS Buffalo). With the Samsung you must first go to channel 7 ABC and then "channel up" to get to 7-2.
One disadvantage is that you cannot delete a sub-channel without deleting all of the channels on that frequency. For instance, you cannot delete 49-2, which provides identical programming (but in SD) as channel 49-1, without deleting 49-1 as well. The Samsung allows users to delete sub-channels without getting rid of the main channel.
Overall, I would say the Philips is a good tuner for the price. It's an all-in-one, DVD/CD player, DVD recorder and digital tuner. It's an affordable alternative to buying a converter box, DVD player, PVR, etc.
I will post later on the Philips' abilities as a DVD recorder (I will post this in the PVR, STB..." thread. I am posting my thoughts on the tuner portion of the unit in this thread because I thought people might find the Philips to be a viable alternative to a converter box.