I set up the DTVPal+ converter box I bought at Sears as a separate RF channel 3 input (instead of cable box) last night, and the DTVPal+ successfully downloaded both OTA and "cable ready" (not cable box) channel lineups and listings into the TV's TVGOS. This was using the DTVPal+ channel 3 analog TVGOS data converted by the DTVPal+ from the digital OTA TVGOS host channel that will be only TVGOS data source available after the digital transition. Our TVs must use an analog channel source as the TVGOS host channel according to Toshiba. So the DTVPal+ converter box will keep our TVGOS system working for us after the digital transition.
It turns out there are two different setups for the DTVPal/+ -- Here is what I have found out so far:
1) If you have a device (TV, VCR, DVD Recorder, DVR) with an analog NTSC ONLY tuner that depends on an analog NTSC signal for TVGOS data, then set up the DTVPal+ on the device according to the instructions in the manual -- with the DTVPal+ set to TVGOS mode as a Scientific Atlanta cable box using the DTVPal+ manual zip code. The analog ONLY tuner in your device will be useless after the digital transition, and your device must use the tuner in the DTVPal+ as a cable box. This setup will use the Scientific Atlanta channel numbers. I think the magic zip code in the DTVPal manual puts ALL channels into the "Cable Box" listing so that analog only devices can receive OTA channels using the DTVPal+ after the digital transition -- and this setup limits all channels to 480i.
Unfortunately, what the DTVPal+ manual does NOT tell you -- and what is needed for our Toshibas -- is this:
2) If you have a device, like our Toshibas TVs, with an ATSC/NTSC/QAM tuner that depends on an analog NTSC signal for the TVGOS data, do NOT set up the DTVPal+ as a cable box. Connect the channel 3 or 4 RF output to your device as a separate input RF input, and use your normal zip code on your device (not the zip code from the DTVPal+ manual). Using the DTVPAL+ remote, set the DTVPal+ to the digital TVGOS host channel for your area -- seehttp://www.rabbitears.info/market.php?request=tvgos
and be sure to select the TVGOS mode from the DTVPal+ menu. Thus, the DTVPAL+ just appears as an analog channel to your TV. This should allow the OTA ATSC and cable tuners in your TV to function normally with the TVGOS using normal channel numbers -- Hopefully, allowing the TVGOS to control AVHD DVRs like the Toshiba Symbio.
Before the digital transition, It would be a good idea to shut off your analog TVGOS host channel in the TVGOS channel editor to make it harder for the TVGOS to find compared to the DTVPal+ channel. Also, leave the TV set to the DTVPAL+ analog channel when you shut it off -- especially overnight.