I was furious that my 2015 ACE had 3 Seiki TV's without QAM tuners (the two bunk bed TV/DVD GPX's had QAM tuners, go figure) and to add insult to injury back then I was charged for the optional Seiki TV's!!! I replaced all the Seiki's with Smart Samsung TVs at Black Friday sales. The Seiki's have good pictures, so I have used them with my home cable and have no issues. Kept 2, gave one away to a friend and all are working fine.
So, not junk, just not appropriate for use in an RV without that QAM tuner. Please don't use as an anchor--fish like digital too
. When you rip them out, please dispose of them responsibly.