Original video animation (Japanese: オリジナル・ビデオ・アニメーション Hepburn: Orijinaru bideo animēshon), abbreviated as OVA (オーブイエー / オーヴィーエー / オヴァ ōbuiē, ōvīē or ova) and sometimes as OAV (original animated video), are Japanese animated films and series made specially for release in home video formats without prior showings on television or in theatres, though the first part of an OVA series may be broadcast for promotional purposes. OVA titles were originally made available on VHS, later becoming more popular on LaserDisc and eventually DVD. Starting in 2008, the term OAD (original animation DVD) began to refer to DVD releases published bundled with their source-material manga.
In the 1980s during Japan's economic bubble, production companies were more than willing to spontaneously decide to make a one- or two-part OVA. They paid money to anime studios, who then haphazardly created an OVA to be released to rental shops. Judging from sales, should a longer series be deemed feasible, TV networks paid for most of the production costs of the entire series.
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