(Actually I have read a spoiler about Nathan's other two kids recently, but yeah, with his angsting about being a bad father, you'd think he'd make a mention of his sons. And at least we still occasionally see Lyle,even if he is sort of the running joke of the show.

Ooh, really? What season is it up to now? I've only ever managed to see S1. And I have a compulsive habit of pointing out when actors from my favourite shows turn up in movies and TV. It's kind of obnoxious.)