Even without being directly tied to The Big Bang Theory, there's an incredibly satisfying reason for why fans should invest in new HBO Max spinoff Stuart Fails to Save the Universe: how returnable it is.
By that, I mean the comedy series could easily run for five, 10, or even a million more seasons and not dip in quality or have any continuity issues. Because there's an infinite number of universes to explore, Stuart Fails to Save the Universe could be taken in any number of zany directions and still make complete sense.