I think my first experience was TAS on TV...
my first batman comic is All Star Batman lol
Don't feel to bad. I didn't start actually READING comics 'till about a year ago..(these cops and lawyers...)
I think my first real Batman story was The Long Halloween.
I just bought All Star Batman and Robin #6 promo cover signed by Jim Lee.
It's awesome.
I was born in 72 and I only saw the afternoon repeats, but it was my first Batman experience. My first exposure to serious Batman was the '89 movie.When I was a little kid I was totally into the 1966 TV Show ( I was born in 1964 ) and my Grandmother made me a Batman Cape with a bat-emblem & everything!