I often see that a lot of Anime series have a few extra episodes. Some are explicitly labeled as Specials, others labeled as OVAs. I get Specials, but I don’t quite understand the term OVAs.
I googled, and found this: What is the difference between an OVA and an OAV?, but all I understood from it is that:
OVA/OAV stands for Original Video Animation
Now that doesn’t explain much, does it? So my question is, how is it different from other extra episodes (Specials)? Are they the same thing and the producers use the terms interchangeably or something else?