I bought a new 32" TV on Black Friday for my computer room, one to replace the 13" tv that I had in there.

Now, that I've set it up, I see that it can also be used as a computer monitor.
If I hook it up to my computer, then I can't watch tv, and use the computer at the same time.
Is there some kind of dual unit that I can use that allows me to use my regular computer monitor when I want to watch tv at the same time that I use the computer, that I then can switch over to use the tv as a monitor when I don't want to watch tv?

Am I making any sense?

Thanks,
Ralph