Many TVs and digital to analogue boxes (sometimes called DTAs) receive digital signals. These channels have sub-channels that use a dash "-" or a period "." like 4-2 and 56.2.
Since you are receiving the signals directly into your TV (or in the DTA box) you may be able to set the Favorites in the TV, then use Flipper in regular mode.
Using your TV remote, press menu, then look for settings and channels. Then delete the unwanted channels, and use Flipper in regular mode.