I think this is because:
1) the jobs are very very similar - same basic work, same company (sort of), and some of the same people, or people who know the other people
2) since it was so similar, the memories just kept flooding back
3) because of confidentiality agreements, I can't normally discuss anything that goes on in these workplaces so here was a rare place where I could talk about the other job, since it directly related to this job
Even though I had not missed this work at all in the 2.5 years I'd been away, it was like riding a bicycle - the techniques and mindset immediately came back. So did the stress of needing to process a steady flow of work. But there was also the satisfaction in getting through the material, adding value and ferreting out problems. And working on something I cared about which I think people will really enjoy.
There's also the element of being starstruck - I'm a game show FAN above all - even though the glamorous world of television is in reality far from glamorous. I did meet one announcer (the news guy, not the comedian), but never even set foot in the studio.
So it's back to the regular routine, which isn't really a routine given its flexibility and freedom. I'll sleep at crazy hours and work on at-homes and already-due-again LA Times puzzles and the NYT puzzles (thanks Will J. for filling in last week!), and read, and listen to Sirius (haven't heard Dean's new morning show on the Martha Stewart channel, much less Howard and Lynn - who I also think of by first names even though I don't actually know them).
I got a Fresh Direct order today, and the refrigerator is full again. I'm already feeling a tinge of workplace-related nostalgia, wondering if there's a Halal stand on the Upper West Side.