Timothy A.
Google
This museum provided a cool summary of the theater and the entire city's Roman, Moorish, and Spanish/Catholic history and varying uses.
It's interesting if you are a history buff or into museums.
If you're not that interested, it may be boring.
Most interpretive panels / information placards are Spanish-only, with only a handful having an English interpretation (or Braille).
Many business hours are incorrect on Google Maps, due to local holidays or siesta.