C4 have announced the EPG slots for their 3 dedicated Paralympic feeds.
Freesat: Channels 150 -152 (HD viewers get the HD versions, and SD viewers the SD ones obv.)
Sky: Channels 450 - 452 (same deal as Freesat) + via the Red Button
Virgin: Channels 550 - 552 for the HD versions, and 553 - 555 for SD
Freeview users will have to make do with 1 feed accessed by Red Button from C4 HD or stream the 3 feeds from their Paralympics website http://paralympics.channel4.com/