Scrubs was a great show all around, but if you know you know - there are two episodes which are absolute gut punches that the show had no right to be that good.

• My Screw Up
• My Lunch

90's Baywatch. It wasn't actually all about Pamela Anderson running in slow-motion, and the first season had a number of "Guys, this is actually a real dramatic show about real people doing a dangerous job saving lives" episodes.

IMO Buffy was more than just fine. The episode Hush was nominated for an Emmy, it's excellent even if you're not into the show.

Xena was eye-rolling entertaining at best. But then every season or so they would have one really well-done episode. Callisto comes to mind in season 1.

Lost. The first episode is a master-class in both "show and don't tell" and setting up "mystery boxes." It was downhill from there.

Absolutely for me Mythic Quest. I know it's a well regarded show, but I found it pretty average overall. But OMG S02E06 Backstory is so much better that it blows every other episode out of the water.

X-files had a hilarious parody episode where Mulder was speaking gibberish the entire episode if I recall. 

The sandman s1 was very uneven but the one in the diner was top notch tv.

for me this show is paradise

Breaking Bad was mid EXCEPT for the fly episode

The last episode of the first season of Northern Exposure, s1e8 "Aurora Borealis: A Fairy Tale for Grown-Ups". It's a decent 90s single camera but that episode really stands out.

Three Stories - House, MD.

When the next Stargate drops, we should revisit SG-1s 200th episode to see what i used for inspiration.