According to SciFi's April schedule:
Fri, April 11: 7:30 pm - The Sarah Jane Adventures Pilot: "Invasion of the Bane"
Fri, April 18: 8:30 pm - Doctor Who Christmas Special: "Voyage of the Damned"
Friday April 25: 8:00 pm Sarah Jane Adventures: Series 1. 2 30 minute episodes
Friday April 25: 9:00 pm Doctor Who: Series 4
And they wonder why I love April so much :-D
but I have been meaning to watch the SJA - so yay!