Ideally you need at least two hobbies: one that you and your Tinder match have in common, so you can do it together, and the other one that is weird and unique so you can impress them, and sustain their interest :-D

With the way dating apps work, you’ve gotta try to make an impression because they make users feel embarrassed for choice. If your profile is basically the same as everybody else’s you’re probably gonna get swiped left unless you’ve got outstanding looks and/or eye-catching photos.

Just put yourself in the shoes of someone who might see your profile. If I’m a bearded guy who enjoys hiking, Netflix, and IPAs what reason do they have to swipe right on me compared to the other 50 bearded guys who also enjoy hiking, Netflix, and IPAs?

Watching TV barely qualifies as a hobby at all, it's something you passively do in a pure-consumption mode. A common hobby that involves you going through a creative process is much better than a pure-consumption 'hobby'. Even "I like to discuss the TV I watch" would be a huge improvement.

Why is this a surprise? Dating app success is about your ability to market yourself and stand out from the crowd.