Did you notice that all of the programs mentioned in the previous post start with the letter B (Blacklist, the)? Two of the three titles alliterate with the venerable second letter. That is probably a coincidence, but I wonder what you could find if you looked at the first letters of show titles during certain periods of time.
Would certain letters be more popular than others overall? What's the fashionable summer letter these days? What was it in 1964?