This is not a stock transition. If you break it down there are simulated TV scan lines + distortion + movement from left to right + a wipe.
Tools you could use would be the Venetian Blinds Transition to create the scan lines then a gradient to be used as a Displacement map to move the scan lines from left to right combined with a track matte to revel the graphic a line at a time, then Mesh warp on an adjustment layer to give the graphic a curvy look.
I'm still having a bit of trouble with this. Do you think you could walk me through it? I've gotten the venetian binds for the scan lines but cant figure out the animation.
Are you still having trouble creating this effect? Please let us know.