I recommend getting in a bunch of your favourite snack items, turning off all your newfangled smartphones and electronic gizmos & enjoy this stellar example of how they made superhero movies before CGI.
(Frank Spencer's American accent is so bad it's brilliant!)
:-)
It's not a bad film and Michael Crawford can't help being likable in anything he does, but there's really no need to run to the store to buy it on Blu-ray.
A bat! That's it! It's an omen.. I'll shall become a bat!