I only saw this series once or twice as a child and thought it no longer existed, however I managed to track it down a couple of years ago on video. Though it is not as good as the 1943 series, it is still a great production. It has better visual effects (most notably The Wizard becoming invisible),which must have been amazing in 1949. There was also more intrigue than the 1943 series, the question about The wizards true identity was well written. William Fawcett was wonderful as the eccentric Profeser Hamill, my favorite character from the series. Robert Lowery and Johnny Duncan were superb as Batman and Robin. Johnny Duncan was not as "in your face" as the 60's Robin, which I really admire. The ending was not greatly acted, however the series was low budget even for the 1940's so It might have been filmed quickly. I really like the car Batman Drives as well, it was just a normal car, allowing Bruce wayne to be drive it as himself and Batman. The fact that it was filmed in Black and White makes it more dramatic. It has the same effect as Tim Burtons dark films.
Review of Batman and Robin
