How do you get the HR20 to autorecord off the higher mpeg4 channels vs the lower number mpeg2 channels. I've deleted the low channels from favs and it still records off the lower channel. Example: Nascar...can be on ABC, Fox, Espn, speed... so can't use CCHAN... Todays race was on espn2 and it recorded the mpeg2 version. Also, any way to edit series links to change default channel number without deleting and recreating? It won't let me create a new one, as there aren't currently any shows in the menu.