What will people be watching in the year 2070? Will any programming being produced today hold up after six decades? The question arises because the Hallmark Channel will devote its entire weekend to celebrating Lucille Ball’s 100th birthday by airing 96 consecutive episodes of “I Love Lucy” (5 a.m., Saturday, through 5 a.m., Monday).

“Lucy” was the first huge sitcom hit and attracted an astounding 67 percent audience share during the 1952-3 season. It was also the first to be shot with three cameras and among the first to be taped for later showing, virtually inventing the notion of the rerun.

At a time when repeats of “Home Improvement” can seem fairly ancient, these old black-and-white comedies hold up. Much of that has to do with the cast and characters. And it’s fortunate that “Lucy” didn’t trade in topical humor. Many of its episodes were broadcast when Harry Truman was still president.

• Michael Ian Black has lived his entire life inside quotation marks. OK, make that his professional life. A veteran of TV shows “The State” and “Stella,” he’s earned a steady paycheck wrapping the ironic in the obvious. Or is that the other way around? Remember NBC’s cheap summer show “Spy TV”? He was the first host back in 2001. He’s done more installments of VH1’s “I Love the …” franchise than I’ve ever watched, and he was a part of pop culture dot.com financial bubble history as the voice of the Pets.com sock puppet!

Fans can catch up on Black’s snarky take on things with “Michael Ian Black: Very Famous” (10 p.m., Saturday, Comedy Central).

Tonight’s other highlights

• A boy with glasses makes good the 2005 sequel “Harry Potter and the Goblet of Fire” (7 p.m., ABC).

• A mom leads her family on a quest to find her missing husband in the 2011 drama “Who is Simon Miller?” (7 p.m., NBC).

• Desert mutants show little mercy in the 2007 sequel “The Hills Have Eyes 2” (8 p.m., Syfy).

• Liza Minnelli, Jack Deem and James McAvoy appear on “The Graham Norton Show” (9 p.m., BBC America).

Cult choice

Actresses share a boarding house as well as dreams in the 1937 melodrama “Stage Door” (7 p.m., TCM), featuring a who’s who of acting greats, including Katharine Hepburn, Ginger Rogers, Eve Arden, Ann Miller and today’s birthday girl, Lucille Ball.