Amy foreshadowing

Probably has been posted before, but on my 50th or so watch through, I caught something in season 1 that hadn't triggered for me tonight. Season 1 Episode 13

Howard: Okay, we’re going to need a strong fourth for our team.

Raj: You know who’s apparently very smart, is the girl who played TV’s Blossom. She got a PhD in neuroscience or something.

Leonard: Raj, we’re not getting TV’s Blossom to join our physics bowl team.

Had a chuckle at this one, at this time was it total coincidence, a foreshadow of her joining the show, or was it after this line someone went.... "you know, maybe we really should look to see if blossom wants to join the show?"
Thought it was a pretty funny dialog I never caught before.