For the 480i/p channels, I compared letting the TWC box and the 1120 do the upconversion. The 1120's upconversion was much better. The only problem was the lag when changing channels.
As it turns out, I've now found enough HD channels on TWC that I don't think this will be a big problem either way. Right now, I've got the TWC box to output at 720p or 1080i and then let the 1120 upscale if it receives 720p. I'll see how the lag is with that. If it still bothers me, I'll likely go the route you suggest, where I set the box to output 1080i. Now that I've found the comedy central channel, 99% of my viewing is HD.
As it turns out, I've now found enough HD channels on TWC that I don't think this will be a big problem either way. Right now, I've got the TWC box to output at 720p or 1080i and then let the 1120 upscale if it receives 720p. I'll see how the lag is with that. If it still bothers me, I'll likely go the route you suggest, where I set the box to output 1080i. Now that I've found the comedy central channel, 99% of my viewing is HD.
Quote:
Originally Posted by CT_Wiebe 
curt_s -- If your TWC box has the capability of doing the up-scaling, setting it's output to 1080i, only, will eliminate the HDMI hand-shake hunting. That's what I do with my DirecTV box (I tell it that my TV/AVR only accepts 720p and 1080i and I force the output resolution to 1080i).
We watch a lot of both SD and HD channels. If I let my DVR (or DirecTV receiver) select the correct output resolution I get a lot of channel switching lag and sometimes it doesn't even, correctly, go to a 1080i output on the HDTV channels (both of my HDTVs are 1920 x 1080 native sets).

curt_s -- If your TWC box has the capability of doing the up-scaling, setting it's output to 1080i, only, will eliminate the HDMI hand-shake hunting. That's what I do with my DirecTV box (I tell it that my TV/AVR only accepts 720p and 1080i and I force the output resolution to 1080i).
We watch a lot of both SD and HD channels. If I let my DVR (or DirecTV receiver) select the correct output resolution I get a lot of channel switching lag and sometimes it doesn't even, correctly, go to a 1080i output on the HDTV channels (both of my HDTVs are 1920 x 1080 native sets).



















