Boomers and millennials, rejoice! The JAG spin-off and syndicated cable mainstay NCIS is coming back to streaming later this month. The long-running hit show is in its 22nd season, but with the first five seasons available on Netflix starting Jan. 23, fans will be able to go back and see how the naval investigation unit has changed over all these years. Very few shows can boast more than 20 years on the air, and the evolution and expansion of the series (and the franchise it spawned) is quite an entertainment legacy.