Hey Arnold! (1996)

S3E27 Arnold's Thanksgiving

Arnold and Helga are convinced that their Thanksgivings are the worst imaginable. While Arnold’s family is busy celebrating President's Day, Helga is stuck at home with her family. When they head over to Mr. Simmons' place, they encounter his loud and bothersome relatives. This experience leads them to realize that their own families might not be so terrible after all.