Well I was just gonna ask about wireless headphones myself. I'm finally fed up with my wired headphones which I use a lot at the computer. Almost daily the wire gets caught under the chair, soooo annoying.
I guess you know the limitations of IR, having to be in line of site to receiver. For me that's not a problem because I'd be using them in front of computer or TV. If you want to be able to roam to different rooms, then you want RF.
Personally I'm looking for something cheap so I've narrowed my search to these two:
SONY MDR-IF240RK (IR) $40
SENNHEISER RS110 (RF) $50
Reviews are mostly positive for both. There's talk of more interference issues with the RF headphones, and I'm in an apt complex so maybe that would be a problem. But some people said that with proper tuning of the frequency you can get clear reception. The Sony IR headphones don't have the interference problems, but people say that there is a hiss as you turn the volume up. I really don't know how the sound quality compares between the two. The Sony set comes with a charger while the Sennheiser one doesn't. I know that multiple IR headphones can share the transmitter base. I don't think you can do that with RF but I'm not sure.
Anyone have any experience with these or any better suggestions?
As for Bluetooth, most that I saw required a Bluettooth device to work with. I don't know about your tv but I guess not too many have BT built in. The Logitech Freepulse are the only ones I saw that have their own BT receiver that plugs into a mini audio jack. Supposedly BT eliminates the interference issues of RF, but I don't really see any other advantages.