1) Valentine’s Day movies, Hallmark Channel. For Hallmark, this is like Super Bowl Sunday. Beginning at 8 am., it reruns romance tales every two hours; four have “Valentine” in the title, all have young love. At 8, “Because of Cupid” (shown here) debuts, adding a supernatural touch. Also, Great American Family has its own love marathon, every two hours starting at 6 a.m.
2) Romance classics. HBO has the deeply moving “The Notebook” at 8 p.m. and the smart “Materialists” at 6. Turner Classic Movies ranges from the bittersweet “Casablanca” at noon ET to lush musicals — “An American in Paris” and “Moulin Rouge” at 8 and 10. And Freeform has great cartoons all day, peaking with “Beauty and the Beast,” at 6:20 p.m.
3) Olympics. NBC is mostly live, from 7 a.m. to 5 p.m. ET, then repackages the day from 8-11. The USA Network goes all day; CNBC goes until 11 p.m. There’s lots of skiing (men’s slalom finals are 7:30 a.m. on NBC); also, speedskating starts at 10 a.m. on USA, 11 on NBC. And there’s hockey, including U.S.-Denmark, at 3:10 p.m. on USA.
4) Basketball, 5-8 p.m. ET, NBC. In the midst of the Olympics, NBC keeps pausing for other sports — the Super Bowl last week and now the NBA’s All-Star weekend. The skills contests — dunks, 3-point shots, etc. — are today, with the All-Star Game at 5 p.m. Sunday.
5) “Boston Blue,” 9 p.m., CBS. Lena and Danny probe the murder of a much-liked shop-owner; also, Sarah faces a hostage crisis. It’s a rerun, as is “FBI” at 8 p.m., with a journalist shot in an apparent assassination attempt.