I've also got a 2802.
I feed my video directly to the TV and use that for video switching while I select my audio via the 2802. eep in mind that runnng video directly to the TV is always better than going through an intermediate device, such as a receiver.
As for audio, I run a Panny BD85 Blu-Ray player's 5.1 audio outs to the 5.1 audio ins on the 29802 and get SOTA sound through it. And the Panny also gets various internet functions, such a streaming netflix, youtube, etc...
Additionally, by running HDMI to the TV, I have the option of getting 2 channel from the TV's speakers, which means I don't HAVE to have the 2802 on at ll times. So, many times all I have use is the Comcast remote or the Panny's remote. ..unless, of course, i want the big-boy sound system, in which case I turn it's internal speakers off.
So, as for sound, don't expect too much improvement. As for convenience, considering you'll ALWAYS have to have the new reeiver in the circuit and powered up, it's a toss-up.