Issa Rae wraps up her groundbreaking series “Insecure” (HBO, 10 p.m.) after five seasons, a benchmark further celebrated on the special “Insecure: The End” (HBO Max, streaming). 

Its companion comedy “Curb Your Enthusiasm” (HBO, 10:40 p.m.) also wraps its uneven 11th season with the city council vote fast approaching.

Boxing Day is a great time to welcome all six episodes of the 10th season of the underrated Canadian comedy “Letterkenny” (HBO Max, streaming).

It’s Washington at Dallas (NBC, 8:20 p.m.) in Sunday Night Football. Earlier games include Baltimore at Cincinnati (CBS, 1 p.m.), Giants at Philadelphia (Fox, 1 p.m.) and Pittsburgh at Kansas City (CBS, 4:25 p.m.). 

“Condor” (Epix, 9 p.m.) ends its second season with a pair of episodes. 

A champagne inspired cake is the challenge on “Holiday Wars: Champion Cake Off” (Food, 9 p.m.), pitting past winners against each other. 

The Cape Cod drug saga “Hightown” (Starz, 9 p.m.) ends its second season. 

The successful launch Christmas morning of the James Webb Space Telescope is celebrated in the special “Beyond Hubble: The Telescope of Tomorrow” (Science, 10 p.m.). 

The “Deadliest Catch” father-daughter team visits Ben Napier’s woodworking shop on a special “Home Town: Ben’s Holiday Workshop” (HGTV, 10 p.m.), which follows the season premiere of “Home Town” (HGTV, 8 p.m.).