Wireless - not.
"These are square tower enclosures, about six inches high"
A 6" tower? Making a mountain out of a mole hill I think.
My old CRT TV would let me disconnect the built in speakers, and plug in a decent pair of book shelf speakers. That was fine for watching TV. But the new LCD has only got a digital out so I need something more complex, have to turn on the receiver...
My TV room in my older house only has two power outlets. One behind the TV stand and the other on the other side of the room. So wireless speakers are out, I'll take speaker wire over extension cords any day.