Mayans M.C. Rides Into Its Second Season on FX

Although the official start of the fall TV season isn't for another three weeks, the pregame show is underway. Tonight, Mayans M.C. returns for its second season, Conan O'Brien takes another timely trip to a far off land (and tries to buy it), the family behind an unscrupulous megachurch returns for a fourth season, and three summer reality favorites get closer to naming their champions. Here are the highlights.

SEASON PREMIERE: After a gangbusters debut last year, the 90-minute second season premiere of the Sons of Anarchy spinoff Mayans M.C. finds the Reyes family in disagreement as the M.C. discovers an internal leak. Watch the preview. 10:00 PM ET on FX

SPECIAL EPISODE: With Greenland somewhat inexplicably in the news recently, Conan O'Brien has jumped at the chance to fly north and introduce viewers to a place few have visited. In the latest installment of Conan Without Borders: Conan in Greenland, O'Brien and his baby sidekick explore ways to ensure a land purchase goes through so he can monetize their famous icebergs. Here's a sneak peek. 10:00 PM ET on TBS

SEASON PREMIERE: The Righteous Gemstones aren't the only questionable ministry on TV these days, as Greenleaf's titular family and their Memphis megachurch return for a fourth season of drama, with Beau Bridges joining the cast as the head of a competing ministry. Check out the preview. 10:00 PM ET on OWN

ALSO TONIGHT

• Bachelor in Paradise finds Blake pining for a rose if his romantic hopes are to come true. Meanwhile, Clay is still twisted up in knots over his feelings for Nicole and Angela. 8:00 PM ET on ABC
• America's Got Talent moves on to the first night of the semifinals as performers take to the stage of the Dolby Theater in Los Angeles. 8:00 PM ET on NBC
• Bring the Funny has also reached the comedy competition's semifinals as the survivors of the Comedy Clash square off with their best round of zingers. 10:00 PM ET on NBC
• Valley of the Damned takes viewers to Fremont County, Colorado, home to 15 high-security prisons, including one supermax facility. The six-episode series examines seven unsolved murders that have occurred in the town since 2006. 10:00 PM ET on ID

Mike Attebery is Senior Editor at Primetimer and the author of seven mystery thrillers. Follow him on Twitter at @mikeattebery.