Only you can decide if FTA is a good idea for you since everybody likes different programming content. Here in the Maritimes, I would recommend a MINIMUM dish size of 1-metre (39 inches) for Ku band. Personally, I wish somebody had told me to obtain a 1.2-metre (48 inches) dish instead of the 1-metre size. The reason for the larger dish is to receive signals reliably even in rain. And the more interesting signals seem to be the more difficult to receive such as the many PBS stations which use DVB-S2 technology. Also buy a very sensitive well-designed LNB for the dish since it is critical in how well your system works.
Start by reading as much as you can. Once you've read a lot about the subject, you can ask specific questions instead of just "Tell me everything I need to know". To discover what is available, refer to this link: www.channels.drsat.ca
. It is a great tool to understand what can be seen. In addition to what is shown on this chart, there are lots of wild feeds with news, information, sports content everyday that can be received. For many, these are the most interesting since you never know what can be found.
In general, especially on Ku-band, you will not see the same stations (e.g. CBC/CTV/Global) you can watch via OTA or subscription TV. If that's a problem, then it's best to stick with OTA or pay TV. You certainly can receive CBC on C-band, but that requires a large dish of 6-feet, 8-feet, or larger in size.
For FTA, you will need to obtain a dish of the correct size equipped with a linear (perferably standard) LNB, a (preferably DVB-S2 capable) satellite receiver, coaxial cable to connect the dish to the receiver and the knowledge of how to install and understand these items. You should also consider whether you install a motor to turn the dish so you can watch signals from many different satellites instead of just one. I guarantee you will want a motor eventually, if not from the first day you begin FTA. It is a hobby that requires an investment of time and energy to get satisfaction from it.
I have a hunch that OTA may be more what you're looking for.