Your question is a bit vague and ambitious…
Tablo works with a variety of app/devices - Tablo Apps & Compatible Devices | Over The Air (OTA) DVR | Tablo …and you didn’t say what you’re using, it may also vary if you have an HDMI TV connected tablo as well. From my perspective, using the web app via a PC, I’d say just point & click.
“With my antenna” huh? A tablo uses an antenna, but not like a joystick for channel selection
Rearranging channels or changing the order is a long-ago request, either they’re looking into it, or decided, for unknown reasons, not to take that path.