My NBC picture is the best. BUT, they do not have subprograms, they run the full bit rate from the network. My CBS has the WB on a subchannel and my ABC has 2 subchannels. You can really see the difference the extra bandwidth makes. Recording on the 622 shows it too since it uses about 1.1-1.2 hours up for each hour recorded, CBS and ABC are always under an hour per hour recorded.