While you’re waiting, tablo has options to only start early or end later – here’s a hack to start late or end early, you could loose a minute on one to get an entire show…
Of course it’s not ideal. It’s relatively easy to do, well it’s a PITA, but something tablo isn’t interested implementing. I don’t have it bookmarked, there was some comment about not confusing user maybe.
Depending how important it is, APL Tablo, a 3rd party app has this function built-in. Schedule adjustment by the minute +/- both start and end times.