I thoroughly like Sci fi shows that give you a prequell look at how your old favourites came about.
Starting with the original STAR TREK series with Cptn Kirk (WILLIAM SHATNER) and MR. SPOCK (LEONARD NIMOY) from the mid 1960's, STAR TREK:NEXT GENERATION, DEEP SPACE 9 (not realy one of my favourites), STAR TREK:VOYAGER, STAR TREK:ENTERPRISE (which shows you the story of how "THE FEDERATION OF PLANETS" came to be formed. This was a prequells prequell) and finally to the latest in the STAR TREK franchise STAR TREK:DISCOVERY.