A Special SBS Transit Bus

Notice anything wrong with this picture? Make no mistakes, this is taken on top of an SBS Transit bus (see the 2 TV Mobile panels at the top).

Look again and the seats are very different from those usual bus that you've seen. The passengers were sat facing each other on both sides. And there is something like a bar counter near the front entrance of the bus. Looks rather cool!

So far I've only managed to board this bus once. Anyone can tell me the service number for this bus? :D