Advertisements On 1 August 2019 another FCC mandated repack of channels happened. Since then my Tivo Bolt with cablecard to Comcast has had problems. Interesting problems: Tune in channel 801, WGBX DT and I get no sound, just a blocky unwatchable picture. But here's where it gets interesting! Leave 801 tuned in for a little while and I get "This channel is not authorized (V58)." When I change channels, ALL channels give that message for about 2 minutes, and then all the other channels come back. Here's where it gets REALLY interesting: Go to the Tivo menu "Tivo Central" -> "Settings & Messages" -> "Channel Settings" -> "Cable Channel Strength" and tune in channel 801, although I get a signal strength of 100, the next thing that happens is I get a pop-up saying there is trouble with my Cable card. Indeed, the Tivo Bolt has lost contact with the cable card. When I power cycle the Bolt, it re-acquires the cable card and all is well. Until I try to access channel 801, which is 100% toxic. Similar problems occur when I try to access the other Comcast manifestation of WGBX at channel 1044. According to Wikipedia at the "WGBX" article, with the repack WGBX is now hosting a bunch of channels packed into its stream: In 2019, with WGBH moving to VHF 5, both station's channel maps were adapted, with WGBH handling both the 2.1 and 44.1 HD signals, and WGBX mainly carrying standard definition subchannels in order to provide appropriate bandwidth to WYCN-CD, which itself had its calls changed to WBTS-CD in the same period of time. This is equivalent to the channel distribution plan used by Twin Cities PBS in Minneapolis–Saint Paul, which divides its subchannels among two existing stations (though all channels map to channel 2 rather than the second station's channel 17). I get unwatchable video on: 801 WGBX-DT PBS 1044 WGBX-DT PBS 935 WBTS-LD3 COZI 1171 WBTS-LD3 COZI TV 956 WGBH-DT2 World 1146 WGBH-DT2 World Is anybody else seeing this?