Monday’s TV highlights

SERIES

Sesame Street: The long-running educational program for young children returns for another season (7 a.m. KCET; 8 a.m. KLCS; 10 a.m. KVCR).

Top Gear: This car-crazy show rolls into a new season (6, 7:20 and 8:40 p.m. BBC America).

Ancient X-Files: Unsolved mysteries from way, way back in the day are explored in this new series (6, 7, 9 and 10 p.m. National Geographic).

The Last Word With Lawrence O’Donnell: The political commentator gets his own cable show (7 and 10 p.m. MSNBC).

SPECIALS

When Worlds Collide: The meeting and then merging of Spanish and indigenous cultures in the Americas are examined in this new documentary (9 p.m. KCET).

MOVIES

Convention: Filmmakers capture the 2008 Democratic National Convention in Denver from a variety of perspectives in this 2009 documentary (8 p.m. Sundance).

Teenage Paparazzo: A youngster’s efforts in the field of celebrity photojournalism are recorded in this new documentary from “Entourage’s” Adrian Grenier (9 p.m. HBO).

SPORTS

Football: The Packers battle the Bears (5:30 p.m. ESPN).

Baseball: The Dodgers visit the Rockies (5:30 p.m. FS Prime), the Angels host the Athletics (7 p.m. FSN) and the Cubs play the Padres (7 p.m. WGN America).