Sell your TV. The hierarchy of weight control goes like this:
1. Diet
2. Sleep
3. Exercise

If you're watching TV every night it's interrupting your sleep cycle, diet, time outside, relationships, productivity, etc., etc.
You could change your diet or exercise routine, or you could switch up your evenings and go outside. Just try putting the TV in the closet for a week. You'll be bored for maybe 2 hours before you start doing something productive like riding a bike, going running, meal prep, family time etc.