@MrMoody - I think there is really no distinction nowadays between computers and televisions in terms of their display technology.
Therefore the idea of a TV tuner for your computer is no longer revolutionary. These things come with their own remotes so you can be a couch potato in your office just as you would in your living room.
The question is what you want to use the technology for. If you are the kind of person who likes to watch a lot of movies online already, then this might be the thing for you.
For me personally, I have other options for online movie watching. I have a PC input in my flat panel television which allows me to route the computer’s video signal to the television. Of course, that’s only useful for online movie watching - it would be pointless for TV broadcasts.