Sceptre already has plenty of dumb TVs. They carry them at Walmart.
Okay, a sound bar might be a reasonable investment but... my new Sceptre TV doesn't do HDMI-ARC, which means a soundbar is a big ongoing hassle, for the life of the TV.
I still give Sceptre credit that they have VGA inputs, and handle DVI converted to HDMI properly (separate audio input), which it seems all other manufacturers just shrug off and don't care to support, even if their know-nothing support reps may tell you otherwise.