Pay no attention to your calendars. According to the networks, summer is over! CBS announced that the beginning of the Olympics means the end of the summer viewing season and that it has scored the best ratings of the period. NBC officially agrees and hopes to score big in the next ratings “season,” whenever that may be. Remember, as summer began, Fox declared the end of the traditional TV season and promised to release new shows througthehout the year. Whatever you call it, without “American Idol,” Fox has had a summer worth forgetting.

And, in a clear sign of summer’s end, the primetime soap opera “Summerland” (8 p.m., WB) wraps up its first, truncated season. On tonight’s finale, Ava mulls Simon’s overtures while still pining for Johnny. And guess what? It’s the last night of summer. That’s got to be a scary day on a show titled “Summerland.” Fall-Land just doesn’t have the same ring.

• The synergy between NBC-owned stations is getting scary. On USA, they’re showing “10 Things I Hate About You” (8 p.m., USA), the 1999 update of “Taming of the Shrew” starring Heath Ledger and Julia Stiles. Over on Bravo, you can watch “Things I Hate About You” (8 p.m., Bravo), a “reality” look at relationships featuring Mo Rocca and couples with plenty of annoying quirks.

Tonight’s other highlights

• Scheduled primetime Olympic coverage includes women’s gymnastics, men’s and women’s swimming, and women’s beach volleyball.
• Two mothers discover how the other half lives on “Trading Spouses: Meet Your New Mommy” (7 p.m., Fox).
• A lawsuit proves revealing for Lorelai and Jason on “Gilmore Girls” (7 p.m., WB).
• “In the Jury Room” (9 p.m., ABC) covers the case of “State of Colorado v. Laura Trujillo,” a woman charged in the beating death of her 2-year-old daughter.