I say Oh-vah, since i'm not an english speaker
Pedantically, we pronounce acronyms as regular words in English. What we don't pronounce as words are called initialisms.
Now you, too, have some knowledge that will never, ever, matter.
>tfw mother language spelling=romaji spelling
>tfw japanese spelling is naturally good without even learning that
My english sounds horrible though
Since OVA is english word its "ohveeah" or however you are supposed to spell these letters