1) “NCIS: Sydney,” 10 p,m., CBS. All three NCIS shows have moved to Tuesdays, which will be their night this fall. This rerun, a good one, starts explosively (shown here); then it plunges the Sydney team into the shaky world of conspiracy theories. That follows “NCIS” (a fun “ladies night” turns into work) and “NCIS Origins,” with a mourning Gibbs joining the search for a girl.
2) “Walking With Dinosaurs,” 8-10 p.m., PBS. Yes, it’s great to be encased in armor. Still, that doesn’t make you feel secure when a raptor is after you. This mid-section of a three-night series, beautifully mixing discoveries and re-creations, starts with a band of young, armored dinos trying to survive.
3) “Attenborough and the Jurrasic Sea Monster,” 10 p.m., PBS. Scaling an English cliff, two fossil-hunters found the ultimate prize — the skull of a pilosaur. Dubbed “the Tyranosaurus of the seas,” it may have been 40 feet long. In this excellent rerun, David Attenborough, then 97, ponders the find.
3) “Teen Beach Movie” (2013), 8 p.m., Disney Channel. This film and its sequel (8 p.m. Wednesday) nudge us into a summer mood: A modern-day surfer accidentally ends up in a 1960s musical with bikers, bikinis and such. Maia Mitchell was a teen, unknown outside Australia, when this was filmed. She went on to a decade in “The Fosters” and its spin-off.
4) Hockey, 8 p.m. ET, ESPN. The Stanley Cup finals return to Florida for the sixth game in a best-of-seven series. The Panthers could wrap it upt; the Edmonton Oilers need two straight wins to return the Cup to Canada after a 32-year drought.
5) MORE: It’s a strong night for games and competition, with Fox’s terrific “The 1% Club” facing NBC’s “America’s Got Talent” at 8 p.m. Also, one of the all-time great movies, “The Godfather” (1972), is at 7 on Showtime, with its sequel (1974) at 10 and “Top Gun” (1985) at 5.