4oD is the most difficult of the catch-up services to actually get on the television. Sadly, I don't think you will have much luck this your on your Sony TV or Blu-Ray player, the reason being that Channel 4 recently announced that sometime in 2013, 4oD will reach Samsung's Smart Hub platform - my point being, of all the hardware devices they mentioned, the only Smart TV was Samsung.
It doesn't mean they won't come to Sony this year, but there is no hint of it.
One option you may have is to upgrade to a FreeTime Satellite box - not quite yet, as 4oD are not available yet (only iPlayer & ITV) but FreeTime have announced plans for it too arrive soon.
One place to keep checking every now and again, is a new site dedicated to on-demand TV. It's really (really) new, but the plans are growing to discuss all the latest on-demand services and when 4oD comes out on any new device, it will certainly be mentioned there:
www.eyeondemand.com