“How I Met Your Mother” reunites with The Mother and Cindy to see where she's been the past eight years before she meets Ted. (Ron P. Jaffe/FOX)

On the 200th episode of “How I Met Your Mother” (Fox at 8 p.m.), titled “How Your Mother Met Me,” we reunite with the Mother and see what she’s been up to over the past eight years before she meets her future husband, Ted, during Robin and Barney’s wedding weekend. Rachel Bilson guest-stars as Cindy.

“The Bachelor” (ABC at 8) is taking the 13 remaining bachelorettes all the way to Seoul, where six of the women get the “pleasure” of going on a date that involves karaoke. Then they learn a choreographed dance and perform at a live concert.

The Travel Channel’s panel of expert hosts are all going to the same destination to plan the ultimate two-week itinerary on “The Trip: 2014” (Travel at 8). Adam Richman, Don Wildman, Anthony Melchiorri and Samantha Brown pack their bags for Spain to show viewers what kinds of extravagance the country has to offer.

“Herblock: The Black and the White” (HBO at 9), tracing the career of the prolific Post editorial cartoonist Herbert Block, is reviewed by Hank Stuever on Page C1.

Hosted by Kevin Spacey, “The 2014 Breakthrough Prizes” (Science Channel at 9) will award six researchers with $3 million grants. Conan O’Brien, Glenn Close, Rob Lowe, Michael C. Hall, Mark Zuckerberg and many more are slated to make appearances.

SERIES PREMIERE: The docu-series “Rod N Wheels” (Discovery at 10) follows Billy Derian and Steve Reck, who have been friends for years with the same dream — working in a garage that fixes and restores vintage cars and hot rods. Now their dream has become a reality with Da Rod Shop, located in the heart of Southern California’s car culture.

RETURNING SHOW: Season 4 of “Hotel Impossible” (Travel at 10) opens with host Anthony Melchiorri heading to Juneau, Alaska, to help a 100-year-old hotel and bar.

Comedian Louis C.K. stops by “The Late Show With David Letterman” (CBS at 11:35), with a musical performance from Arctic Monkeys.

Comedian Dana Carvey and retired basketball player-turned-activist Earvin “Magic” Johnson come to “The Tonight Show With Jay Leno” (NBC at 11:35), with musical guest A Great Big World.

Actor Chris O’Donnell and Indiana Pacers player Paul George are on “Jimmy Kimmel Live” (ABC at 11:35).

— Rachel Lubitz