What time do you think I have to show up to the capital one arena for the viewing party to get a seat inside

I would suggest being there before 6pm

Doors open at 7. There will be a line

Doors open at 7. I imagine the place is going to be filled up, I'd show up by 6 or earlier.

I would definitely suggest earlier than 6 p.m. if not before 5 p.m....

6pm