How many of these did they make? The wierd thing is that I have watched a lot of the genre shows from the 60's forward and I never saw these on first run.
The TV show only ran for one season (1966-1967) and ran for 26 eps. The series was previously serialized on the radio in the 30's and 40's and had appeared in comics as well. The character was created by George Trendle who also created, "The Lone Ranger". In fact, according to series canon, Britt Reid was [in the beginning of the serials] the grandnephew of the Lone Ranger. Since so much time has passed, he'd still be a direct descendent, just further down the line.
From the musical cues I'm guessing that the show was made by the same company as Batman and at about the same time but I saw Batman and never heard they made an actual series of GH.
You're right. William Dozier wanted to do another comic book character (with "Batman" going strong on network TV twice a week) but wanted to take a more serious and straighter tone (as opposed to the campy adventures in "Batman") so he went with "The Green Hornet". Like Batman, Dozier did the narrations as well.
I thought there was a pilot as part of Batman but heard nothing more about it. Then I know Bruce Lee died young so I thought it was never made.
Bruce Lee died in 1973, long after both shows ended. The crossover with Batman did happen - twice (although one was a cameo). The first time was in "The Spell of Tut" when the two appeared in a window of a building Batman & Robin were scaling. The exchange some words and leave. In, "A Piece of the Action" and "Batman's Satisfaction" (two part episode), the Caped Crusaders found themselves working with Hornet and Kato (believing them to be the villians their personas were set up to be) to bust a counterfeit ring . There was also a legendary fight scene between the four of them - in which it was argued who'd win? This was especially true with the battle between Robin and Kato. Ultimately, it was left to be a draw.
I think the series will be part of Sci Fi's lineup - but the show's not available on DVD so far, but there are 4 episodes that appear on a different disc. It's available here