If there's a sitcom version of an earworm, "The Big Bang Theory" is it. It's successful, memorable, infinitely rewatchable, but critics don't like it. Thus, it's a lot like the theme from the "Teenage Mutant Ninja Turtles" -- anyone who saw even one episode of the smash-hit '80s cartoon can hum at least part of the theme, but it's doubtful they'd say they actually like it.

It makes some sense, then, that Chuck Lorre created both.

But perhaps I'm overthinking it. The fact is, both shows were enormous hits, so maybe that's the link: everything Lorre touches turns to gold.

It is a little surprising, though, not only because the two happened decades apart, but also because writing songs and writing shows seem like very different pursuits. And, while the TV mega producer (also behind other hits such as "Mike & Molly" and "Two and a Half Men") might be expected to be a bit sheepish about having once written a jumped-up jingle, in fact he'd be thrilled to know you're still thinking about the song.

And you're not the only one. The writers of "Unbreakable Kimmy Schmidt" (one of the few modern sitcoms not created by Lorre) made a joke about it in one episode, and so of course he was asked about it in an interview.

"I'm just thrilled that the song is still happening," he told IndieWire.com. "That's 30 years ago that the song got written. And it got written by me and my partner, Dennis Brown. We wrote it in an afternoon and we recorded it in an evening. And it's still alive! How cool is that?"

Very cool indeed. Radical, even.

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