I'm not sure if my TV supports ARC. I'd never heard about it and just read up on the Panasonic HTB10 soundbar. The tv is a Sony 40EX720 - and I'm not really sure how the HDMI connections work with ARC. Some other models I've seen allow a connection from the TV's headphone jack to RCA inputs on the soundbar and then full control from the tv remote.
I'd really like a soundbar that provides decent sound, full control from the tv (including power on and off) and I do not need a subwoofer (since it's a tv in the bedroom, perfect sound reproduction is my goal, just "good" sound).
Thanks again for your input so far.