It’s probably a good day to stay inside, to avoid people hopped up on mint juleps or margaritas, as The Kentucky Derby (NBC, 2:30 p.m.) coincides with Cinco de Mayo for the first time in a while.
Despite four hours of coverage, the actual race itself, with a post time of 6:46 p.m. EDT, runs for a couple of minutes. Among the interesting horse names this year are Free Drop Billy, My Boy Jack and Instilled Regard.
And what is there on about Cinco De Mayo? Nothing.
The documentary “Mark Felt: The Man Who Brought Down the White House” (Starz, 8 p.m.) looks at the man who, as Deep Throat, provided information that helped bring down Richard Nixon.
A pair of basements outside of Baltimore get makeovers on “Trading Spaces” (TLC, 8 p.m.).
“Nate and Jeremiah by Design” (TLC, 9 p.m.) helps a woman plagued by unreliable contractors.
Eric negotiates the release of an arms dealer’s son on “Ransom” (CBS, 8 p.m.).
A woman’s final fling before marriage has complications on the made-for-TV “Dangerous Seduction” (Lifetime Movie Network
“CNN Special Report” (CNN, 8 p.m.) looks at the spread of hate through the internet.
On “The Book of John Gray” (OWN, 10 p.m.), he counsels a married couple.
A pair of Komodo dragons meet for the first time on “The Zoo” (Animal Planet, 9 p.m.).
The Aaron Hernandez case is the subject of “Murder Made Me Famous” (Reelz, 8 p.m.).
“Ghost Adventures” (Travel, 9 p.m.) finds an evil house in Reseda, Calif.
Turner Classic Movies’s theme tonight is Western Justice with “Hang ‘Em High” (8 p.m.), “The Ox-Bow Incident” (10:15 p.m.), “The Narrow Margin” (midnight), “A Few Good Men” (1:30 a.m.) and “Twilight of Honor” (4 a.m.).
The NBA Playoffs go primetime with Toronto at Cleveland (ABC, 8:30 p..m.). Earlier, it’s Boston and Philadelphia (ESPN, 5 p.m.).
The Stanley Cup Playoffs have Pittsburgh at Washington (NBC, 7:15 p.m.) and Winnipeg at Nashville (NBC Sports, 9:30 p.m.).
Baseball has Detroit at Kansas City (Fox Sports 1, 4 p.m.) and Los Angeles vs. San Diego (Fox Sports 1, 7 p.m.).
Ed Sheehan plays an “Austin City Limits” (PBS, 11 p.m.) from last year.
After a long break, it looks to be one of the better “Saturday Night Live” (NBC, 11:30 p.m.) with Donald Glover both hosting and appearing as musical guest as Childish Gambino.