Originally Posted by hardrock_121
...My tv is wallmounted , so dont want to add a antenna to it which will look hideous around the clean solution right now. ...
As mentioned earlier, you're going to need an antenna to pick up the OTA signal; ideally on the roof. Of course, using some rabbit ears can work, in the short term, to give an idea what you can even get. I think antenna.org or titantv.com can give you list of what they think you should pick up too. But if you're going to do the whole house, find your distribution box in your house that cable uses. Just switch the input feed from cable to your antenna. You may need to get an antenna signal booster. Why rewire when you don't need to. The only issue, if you use cable internet, then you'll either need to figure out which line goes to the room with the modem and connect that room line with the outside in-feed line, or run a new line for that room.
The option, piggy backing off an earlier suggestion to just to connect to the your TV turner, assuming you use Windows Media Center or something, is to either have PC connect to each TV or some kind of media center, such as a Xbox 360, so all the TVs in the house can get live TV; this will also give all TVs access to your PVRed shows/moviess. I did the later, but it only to one TV because it predated ClearQAM.
As for tuners, some of it is going to depend on the machine(s) you're going to be using. Ceton have excellent turners. Some just use a expansion slot in a PC. You are able to share those tuners with your network; I'm not familiar with the ease of the setup or any quirks this has. The have some USB tuners as well; unfortunately, I'm even less familiar with them, but I assume sharing tuners can be done. Needless to say, you''ll need a computer on 24/7 or be able to wake from standby reliably.
The other popular option are the Silicondust HDHomerun network attached TV tuners (NATT). I personally use this. These are excellent turners as well. I personally use them. These are good choice if your PC doesn't have room or expansion slots for the something like the Ceton. All the tuners are shared through the network. You'll only need a PC to PVRing. I have a PC 24/7 but that's because it's unreliable in waking from standby and I run a Plex Media Server that I access a lot outside of home. Plus, it doesn't use much power anyway. If you're going OTA,, I suggest the HDHR3, not the HDHR3CC. Unfortunately, the HDHR3CC does not accept ATSC signal, only QAM and ClearQAM. The previous models accept both ATSC and ClearQAM. The HDHR3 versions are more signal friendly, so I think they may be a better option. Depending on when you make the switch, I would suggest the HDHR4 if it has been released. It's suppose to be able to transcode signals, which should give the abliity to watch on mobile devices such as away from home; this may be a solution to your streaming channels online. The transcoding thing can be done with the HDHR3CC, but it needs a PC to do the transcoding. And from what I read, the transcoding is only for the CC HDHR versions; stupid cable.