LA is a obviously a very large and spread out city so it can make logistics difficult, and I don't know who you're going with, but here's some general recommendations:
- Eat in Koreatown (maybe more than once)
- Get late night tacos from a food truck if you have that kinda night or whenever (I don't have 1 place in mind so here's some possibilities:
https://la.eater.com...querias-mexican)
- I know LA is not known for its pizza (rightly so) but legendary pizza maker Chris Bianco recently opened up a place
- See if you can get tickets to the Comedy Store, one of the best places in the country to see successful and soon to be successful comics working out their material
- Universal Studios is expensive but very cool and probably even more appealing to someone like yourself that's so into TV/ film
- Consider checking out Griffith Park, maybe a hike to the Hollywood sign and/or checking out the famous observatory
- The Getty is a rather amazing place for its artwork, architecture, and amazing location overlooking the city
- There's several other top notch art museums such as LA County Museum of Art and The Broad
There's tons of options beyond that depending on what you're into and I'm very far from an expert, but feel free to ask any follow up questions.
My main advice in any city, but especially LA since it's one of the best food cities in the country, is to seek out some of the spots that make that place's culinary scene stand out.