6. Batman '66
In many ways, The LEGO Batman Movie is a love letter to the 1960s TV series and an entire list could be made out of the references to that. Let's take a look at some of the biggest, though. Alfred dresses in the original Batman costume at one point, while Robin later comes across some Bat-Shark repellent which proves to be very handy in the third act when Jaws attacks.
The classic theme tune can also be heard on numerous occasions, while one very cool action sequence near the end of the movie brings back the now iconic "Bam!" and "Pow!" logos as they flash up on the screen. Some of the more ridiculous villains from the show also get to make a comeback in this animated movie, with King Tut and Egghead both getting brief but amusing moments to shine at various points here. Regardless of your feelings on this series, you've got to smile at most of these!
2. Batman: The Animated Series
Batman: The Animated Series is understandably loved by the vast majority of fans, hence why it's referenced here on at least a few occasions. Most of those are the visual ones we've already mentioned, but what you may not realise is that The Condiment King is one of them! He took on that role after The Joker used mind-altering drugs to change his personality due to him being one of the judges who mocked him back when he was a stand up comedian.
I mentioned the Batman Beyond suit a little earlier, and that hero's animated series also seems to get some nods here. For starters, the concept of Barbara Gordon being Gotham City's Police Commissioner definitely hails from that show, while look closely and you'll notice that Blight, one of Terry McGinnis' greatest foes is hovering around in the background at one point (so too is the Mutant Leader from The Dark Knight Returns, talking of future set Batman tales).