Tour-de-France-Hero-2Part athletic competition, part travelogue, bicycling’s Tour de France (NBC Sports, 6:30 a.m.) is a highlight of the midsummer. This year’s race is expected to be one of the toughest in years with clings that include Mont Ventoux and Col du Tourmalet. It starts today at the beautiful Mont Saint-Michel in Normandy and veers to the Pyrenees and the Alps before the finish in Paris July 24.

Sports dominate broadcast networks tonight, but prime time swimming Olympic Trials (NBC Sports, 5 and 8 p.m.) make way for NASCAR (NBC, 7:45 p.m.) with the terribly named Coke Zero 400 from Daytona.

There are Olympic Track and Field Trials (NBC, 2 p.m.) this afternoon, however.

Prime time baseball tonight has Cincinnati at Washington (Fox, 7 p.m.) but probably won’t stick around for the fireworks.

Let’s celebrate women voting rights! “Suffragette” (HBO, 8 p.m.) with Carey Mulligan, Helena Bonham Carter and Meryl Streep, makes its premium cable debut. Also on tonight, Kurt Sutter’s boxing film “Southpaw” (Showtime, 9 p.m.) with Jake Gyllenhaal and Rachel McAdams.

NBC burns off episodes of its long cancelled sitcom failure “Angel from Hell” (CBS, 8 and 8:30 p.m.) to kill an hour.

Among the marathons this weekend is one for the Civil War era miniseries “Underground” (WGN America, 10 pa.m.).

The first dozen episodes of this season’s “Outlander” (Starz, noon) play in a marathon as well, in advance of next week’s second season finale.

And the “Godfather” (Cinemax, 5 p.m.) films are played in chronology, over seven hours.

A dog helps a marathoner when she falls in a canyon and breaks her pelvis on a two hour “20/20: In an Instant” (ABC, 9 p.m.).

Your Saturday night Shark Week lineup is “Jungle Shark: Sharkopedia Edition” (Discovery, 8 p.m.), “Sharksanity 3” (Discovery, 9 p.m.) and “Shallow Water Invasion: Sharkopedia Edition” (Discovery, 10 p.m.).

Hallmark has run out of new June bride movies (and the month of June) and is rerunning “The Wedding March” (Hallmark, 7 p.m.) and “Love by Chance” (Hallmark, 9 p.m.). But Lifetime comes up with one: The new, made-for-TV “Newlywed and Dead” (Lifetime, 8 p.m.) starring Shenae Grimes-Beech.

Campbell’s return to town complicates Louise’s life on “Hell on Wheels” (AMC, 9 p.m.).

“Dr. Jeff: Rocky Mountain Vet” (Animal Planet, 9 p.m.) has his own health scare.

Custer meets the Sioux at Little Big Horn on “The West” (AMC, 10 p.m.).

Flooding hurts the clinic on “The Vet Life” (Animal Planet, 10 p.m.).

American musicals get the spotlight on Turner Classic Movies with the compilation “That’s Entertainment!” (8 p.m.) followed by “Seven Brides for Seven Brothers” (10:30 p.m.) and “On the Town” (12:30 a.m.).

Later comes the gothic horror double feature “Sisters” (TCM, 2:15 a.m.) and “What Ever Happened to Baby Jane?” (TCM, 4 a.m.).

Baseball today includes Cleveland at Toronto (MLB, 1 p.m.).

It’s Germany vs. Italy (ESPN2, 3 p.m.) in the UEFA Euro.

Third round play continues at Wimbledon (ESPN, 8 p.m.).

An “Austin City Limits” (PBS, 11 p.m.) with TV on the Radio and the War on Drugs is replayed.

The big 2015 episode of “Saturday Night Live” (NBC, 11:30 p.m.) with Tina Fey and Amy Poehler hosting