As I recall, Spielberg created "Raiders of the Lost Ark" with the idea of recreating "Saturday afternoon" movies with a little something for everyone--humor, high-stakes, scary moments, spectacle.
"The Librarian" series has the same aim and hits it well, so you're guaranteed sheer mindless entertainment. Noah Wylie's geeky "Librarian" keeps saving the day with lots of knowledge and few social graces, generally making a fool of himself along the way. Bob Newhart and Jane Curtain are such steady pros, they make you laugh without appearing to try. There's a well-cast requisite gorgeous girl in each show, and thankfully these female characters can hold their own and do as much rescuing as being rescued. Plus, it's nice to see a series that shows the value of knowledge and learning, even if Flynn has taken that idea a bit far. Geeks and friends of geeks will see much that hits home.
The special effects are good rather than great, but they work just fine. This series doesn't have the massive special effects budget that most blockbuster movies have. However, that's not necessarily a bad thing, since many big-budget movies overuse special effects to substitute for plot and character, without making the movie or the effects more interesting.
I enjoyed Librarian #3 "Curse of the Judas Chalice" probably even more than the prior 2 in the series. I loved the New Orleans setting, the female lead Stana Katic, plus this time they left out Flynn's mother (a not well written character). Watch the movies in sequence if you can. I'm recommending the series to several friends, and I'm looking forward to seeing more!