First of all, there are many many wireless headphone out there; and for what you need, just take your pick. Of course you problem is not the phones but the connection but what's wrong with just turning down the volume? The other alternative is not cheap..is to get and amplifier or receiver with optical audio input and earphone output; that way you can connect the optical out from the tv to the receiver. Good luck.
Recently I purchased the Samsung ln32b550 television. I am hoping to find suitable headphones, preferably wireless, so as not to bother others in my apartment building. The only problem is that I do not have much experience with audio tech and, from what I know, my tv does not have the 3.5 connection normally used with headphones. Any suggestions or help with understanding the connections would be very helpful and welcome. Thanks!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic