Usually, when I buy something like these, they get used once or twice and then sit there gathering dust. Not with these great cans though.
I use these pretty much every day - in fact I've got a couple of pairs - for TV / movies and playing games. I discovered a whole layer of audio in Call of Duty: World at War that I could not hear before and it makes it a much more intense experience playing whilst wearing these cans turned up nice and loud (not too loud though - you don't want to wreck your lugs).
A couple of things worth mentioning. Firstly, these attach up to your audio / TV with a standard headphone jack, so you can just plug them in - through the base station - like any other set of 'phones and use them with pretty much anything. The only problem with that is you don't get real surround sound out of them, although you do have a button which "expands" the sound and this really is a nice effect (I leave it on this mode all the time when watching TV or playing games). It's far from a substitute for a proper 5.1 set-up though.
Secondly, you need to turn up the volume on you audio / TV kit quite high and adjust the sound through the headphones themselves - this reduces any hiss.
All in all, I think these are the best TV / audio accessory that I have bought. Great sound, comfortable to wear, batteries last for ages between recharges (never run out on me yet), great design of phones and base-station. Can't fault them!