I have -4 and -5 channels in my active channels. I don’t have the -1 because it is Spanish. Spanish Movies show up in Movies. This is on Android beta but think it is on the released version too.
Just tried calling support and got recording when you are closed.
It might be sine there aren’t that many subchannels at Tablo HQ to test with. I have no active Spanish stations but some of them have English subchannels