Yes, to your question about the HR10-250. Didn't realize that channels 6, 12, and 31 were gone since they are not in the guide and are skipped when using channel up / down. Callsign data was verified via web page as shown per your previous post. See synopsis of the different receivers that follow. Forgot that my original dual 120GB HDD's install was performed manually (Monte) by me, but current dual 400GB HDD's were by DVRupgrade software and scripts. Mixture of five HDVR2 / SD-DVR40's all with InstaCake and PTVnet 6.2 software (DVRupgrade software installed by me): Channels 4 (CBS), 7 (ABC), and 9 (NBC) Available in guide with correct program info Available when using channel up / down (no video or audio, but channel is not skipped) Initially shows top banner with correct guide info and no lower "error" banner when first going to channel, then goes blank with no video or audio Top tuner area (round white outlined bullet) at right side of banner has no red ball inside of it like an available local channel would have Channels 6 (PBS), 12 (PBS), and 31 (FOX) Not available in guide Channel is skipped when using channel up / down Direct access to channel initially shows top banner with no program info and a lower "error" banner of "Channel not available" when first going to channel, then goes blank with no video or audio HR10-250 with original 6.4a software and RBautch enhancement script installed by me: None of the above problems Receives channels 4, 7, and 9 Receives channels 6, 12, and 31 (also are in the guide) Could be software version, DVRupgrade software and scripts, guide memory limitation, DTV change, or a combination of issues. What version software and enhancement method are you and your friends using? Could narrow down to an enhancement method and / or software version that a recent DTV change triggered this problem and possibly rule out guide memory limitation.