Let's be honest: this 1978 TV movie pilot exists in that special purgatory of 'technically family-friendly but practically unwatchable.' Made on a shoestring budget for CBS, it features the kind of production values and pacing that make you appreciate just how far we've come.
The safety profile is impeccable—1970s network TV standards mean nothing remotely concerning happens—but that's because nothing much happens at all. It's the cinematic equivalent of watching paint dry, except the paint is wearing a cheap costume and speaking very slowly.
Unless you're a Marvel completist doing homework or you need something so boring it'll put your kids to sleep faster than melatonin, there's absolutely no reason to subject your family to this. The 2016 Benedict Cumberbatch version exists. Watch that instead. Your kids will thank you.