I keep getting a Flash software update popup on WWF from jukeboxsaturdaynight.com ...I think it is a scam?
Yes, scam. Ignore ALL Flash update pop ups.
Yeah, sounds like an attempt to get you to install malware.
If this happens again, please take a screenshot and capture the full address in the browser window, and send it in an email to email@example.com. We have a dedicated team that handles this kind of stuff.