They are both hentai. Mezzo Forte TV, however, is not, but it came after the OVA. Same goes for Nanoha series, which is technically a spin-off from Triangle Heart hentai OVA., Can't really think of any other examples right away.
the one series that had the balls to give us a decent hentai, even included the maid
>Show was nothing but tits and yuri rape
>OVAs were all softcore masturbation vids
>It wasn't a hentai
Wasted Potential: The Anime
Borderline hentai is fine too. Problem being they cheap out on directors and animation studio.
The DearS OVA was pretty lewd.
It didn't stop the show from being absolute horse shit, btw,