It may be unfair to judge a once-beloved show by its final few moments, but let’s face it: In today’s short-attention-span society, it’s the last impression that lingers the strongest. So for better and for worse, a show’s series finale may just prove to be its most important episode. Snakkle looks back at some of the best—and worst—in television history.

It’s just shy of 20 years since Fox’s creepily addictive drama The X-Files debuted on TV. The series launched the careers of series leads David Duchovny and Gillian Anderson and forever cemented the names of Mulder and Scully in the pop culture hall of fame. Creator Chris Carter crafted a rogue’s gallery of memorable characters lurking in the shadows throughout the nine seasons of the series (and two theatrical movies). Snakkle takes a look at some of our favorites and checks in with where the actors are now.

With the premiere of FX’s The Strain AND the return of Netflix’s Hemlock Grove,Snakkle takes a look back at the seminal television shows that paved the way, or defined the genre on the small screen. From Dark Shadows to The Walking Dead, these scripted dramas made such lasting impressions on us all that we still get chills from them to this day.

Jane Lynch became an overnight sensation as Sue Sylvester on Glee. But as we all know, no one is an overnight sensation. (Except for Justin Bieber. But that’s different.) Check out what Jane was up to before Sue was even a glint in Glee creator Ryan Murphy’s eye.