The Shazam TV show only lasted three seasons with a total of 28 episodes. The last episode aired on October 16, 1976. Fortunately for fans, all 28 episodes are available on DVD!
Here are some pictures of my DVD collection which was a Christmas present for me a few years ago.
The DVD collection is still available, I recommend you check with your favorite retailer for a copy! On the Warner Brothers on-line shop, I noticed that you can order the collection with exclusive cover art by one of my favorite Captain Marvel artists, Jerry Ordway. Here's a look at that special art cover.
I've re-watched these episodes quite often and always enjoy them. I hope Warner Brothers produces the entire collection in the blu-ray format - that would be awesome!