My son (who's 7.5 now) has long been a Batman TAS fan. In fact, we have video from his 2nd birthday where he got Season 2. I remember at the time that we were all excited to give him another season because we'd all been watching Season 1- the same 10 hours of it, several times a week. My mother-in-law was there and expressed sincere concern that it was not an appropriate gift for a 2 year old... but I countered that he really enjoyed it and was very excited about it.

Watching the homevideo now, it does shock me at how young my son was when he was watching that show... but he was really into it.

However, he's not into the Fleischer Superman stuff... he's not a serious collector.