The world has had so many madmen among its leaders sometimes even the recent ones will slip your mind. So here’s a documentary about “Mad Dog: Inside the Secret World of Moammar Gaddafi” (Showtime, 9 p.m.). The film by Christopher Olgiati provides a fascinating look at his bombed-out palace and bunkers and interviews with shadowy associates, munitions providers and former underlings who worked with him and were charmed by his ideas of becoming the top Arab leader,and taking over Africa. Making $1 billion a year for oil funded his odd ideas, like the time he had all the camels killed in Tripoli because he thought they didn’t reflect the modern state.
The one year anniversary of the Boston Marathon bombing brings a number of specials this weekend. “108 Hours : Inside the Hunt for the Boston Marathon Bombers” (NBC, 8 p.m.) delineates the time until the second bomber was found, an extraordinary time when a major American city voluntarily shut itself down to aid the capture.
On cable, Shane Smith follows the path of the Boston bombers back to Dagestan on a new “Vice” (HBO, 11 p.m.) and Thomas Morton looks at the big support for Israel found in the Bible Belt.
One of the great albums of last year, “Southeastern,” is performed by Jason Isbell, the former Drive-By Trucker, on a notable “Live from Lincoln Center” (PBS, 9 p.m., check local listings). The hour long performance is followed by that maddening documentary that played earlier this week, “The Dave Clark Five: Glad All Over” on “Great Performances” (PBS, 10 p.m., check local listings).
A sixth season start comes for “Kitchen Nightmares” (Fox, 9 p.m.), as Gordon Ramsay visits a bakery in Scottsdale and starts yelling.
The unexpected second season of “The Neighbors” (ABC, 8:30 p.m.) comes to an end with an even more unexpected event: Larry’s pregnant.
A winner is chosen in the fifth season finale for “The Next Iron Chef” (Cooking, 10 p.m.).
You probably didn’t know there was a wild hog problem in Texas. Now there is a wild hog problem on your TV, with the new series “Boss Hog” (Discovery, 10 p.m.), following the critter-chasing mission of one Brian “Pigman” Quaca.
Anna Chulmsky of “Veep” guest stars on “Hannibal” (NBC, 10 p.m.) in which Will is set free.
An extraordinarly bad timed salute to the WWE wrestlers the week the Ultimate Warrior died is repeated on “The Soup” (E!, 10:30 p.m.).
Masha Alekhina and Nadya Tolokonnikova of Pussy Riot are on a new “Real Time with Bill Maher” (HBO, 10 p.m.). Other guests include Ana Marie Cox, Rep. Duncan Hunter, Rob Lowe and Matt Taibbi.
With the sequel in the theaters, here’s the first “Rio” (FX, 8 and 10 p.m.).
A week of fan programming on Turner Classic Movies ends with “Summer Stock” (8 p.m.), “Sunday in New York” (10 p.m.), “Nights of Cabiria” (midnight), followed by two movies from Sherwood Forest, the 1938 “The Adventures of Robin Hood” (TCM, 2:15 a.m.) with Errol Flynn, and, from 1968, “A Challenge for Robin Hood” (TCM, 4:15 a.m.).
Hockey action includes Chicago at Washington (NBC Sports, 7 p.m.) and Colorado at San Jose (NBC Sports, 10 p.m.) in Basketball, Indiana at Miami (NBA, 7:30 p.m.) and Golden State at Lakers (NBA, 10:30 p.m.).
Baseball includes Red Sox at Yankees (MLB, 7:05 p.m.).
In golf, there’s second round action in the Masters (ESPN, 3 p.m.).
Daytime Talk
Kelly & Michael: Jennifer Garner, Merrit Weaver, R5. The View: Megan Mullally, Nick Offerman. The Talk: Dermot Mulroney, Jackie Collins. Ellen DeGeneres: Johnny Depp, Paul Bettany, Rebecca Hall, Miranda Lambert. Wendy Williams: Valerie Bertinelli, Jane Leeves, Wendie Malick (rerun).
Late Talk
David Letterman: Tom Selleck, Carrie Brownstein, David Nail (rerun). Jimmy Fallon: Nicholas Cage, Emily VanCamp, Kiss. Jimmy Kimmel: Bill Clinton, Manny Pacquiao (rerun). Seth Meyers: Martha Stewart, Lil Jon (rerun). Craig Ferguson: Wanda Sykes, Malin Akerman. Carson Daly: Patton Oswalt, Icona Pop, Dominic Cooper (rerun). Tavis Smiley: Stewart Copeland. Arsenio Hall: Martina McBride, Charlamange, Jackie Fabulous. Chelsea Handler: Don Cheadle, Dov Davidoff, Betsy Sodaro, Josh Wolf (rerun).