One thing about having a TV remote, it's just a TV remote
The typical TV remote has 50 buttons, looks like a 1970s pocket calculator and, on a modern set, you still have to do many things via on-screen menus. So, one way Apple could go is to replace the fugly TV remote with something more like the current Apple remote (Joypad + 2 extra buttons) as the "fall-back" controller.
For more advanced use, bring your own iDevice. Downside: it needs to be charged; Upside: well, you get a better UI but most of all its all personalised - with your own viewing schedule/series passes/playlists etc.
Look at it this way: your iDevice is now the TV. The big screen in the lounge is just that: a big screen which your iDevice can use when you're sitting on the sofa.
...and if you want a dedicated iPod to If you're on an economy drive you're probably not going to buy a TV from Apple, so what's another $200 for an iPod Touch to keep docked besided the TV?
TV, the latter MUST be included. All the fantasies that revolve around an iDevice being in the mix seem to forget that when the owner of the iDevice leaves the house, he/she takes it with them. Anyone who lives with more than 1 person knows that you can't take the remote out of the house and have happy roommates/family members when you get back home.