A viral video, asking the question "Do you know mayonaka TV?", is going all, well, viral.

The clip is apparently a teaser for an upcoming anime based on forthcoming role-playing game Persona 4.

"Mayonaka terebi" is "midnight TV", but in the game series, it's a fictional television broadcaster.

The clip shows Tokyo's JR Yamanote Line and asks if viewers know "mayonaka terebi". There is a countdown site for Mayonaka-TV.jp that ends in around seven hours.

Is This The First Persona 4 Anime Teaser?

However, if the site is viewed on Japan's Docomo cell phone network, it clearly says PERSONA4アニメーション or "Persona 4 animation".

[via @puro1 via AniMelt]