Just got a Moto dch6416 dvr. Does comcast support the dual part and picture in picture? Also it seems to only do 720p on the HD channels. Is there channels that are 1080?

ABC, FOX and ESPNHD broadcast in 720p all the others broadcast HD in 10080i.
With your 6416 STB you can the settings optiosn to output all 16:9 resolution programs in either 720p OR in 1080i.
If you have a 1080P HDTV you would want to use 1080i. If you have a 720P HDTV you should try both and select the one your eyes like best for your viewing habits.

Just got a Moto dch6416 dvr. Does comcast support the dual part and picture in picture? Also it seems to only do 720p on the HD channels. Is there channels that are 1080?

Some good reading here (http://en.wikibooks.org/wiki/How_to_use_a_Motorola_DVR).

Sorry, my first post failed to mention that the Motorola STBS do not support PIP.