3rd Rock From The Sun
 

Any other fans for this series?

Never got into it.

Is this the sort of thing that ever showed up in rerun marathons?

Seems like a lot of popular shows I end up watching are because of casual reruns that come on after the end of the local news in the later afternoons.

I love this show. Used to watch it every night it came on and DVR'd it if I missed it. I would put it on if I found it airing in syndication. John Lithgow was hilarious; he stole the whole show for me. I got the series on DVD.

Channel 4 in the UK repeat it a lot these days

Vaguely remember it now. It was something I'd occasionally watch when nothing else was on.

I remember Joseph Gordon Levitt as this sullen kid who's actually the leader, and a lot of comedy around that.

Levitt wasn't the leader but he was the oldest of the alien characters stuck in the youngest human form.