The hologram effect is pretty simple, IMO. It's just a filmed element off of a television. The image on the television is all black except for the main hologram object (and they probably used mattes around the unused portion of the tv screen to avoid unwanted light spill), and this film fx element is simply superimposed over the main set element. No matting required since the hologram is trancelucent.

The television gives you that look of rows of pixels and the scan line "waves" - whose effect is caused by the difference in frame rates, but can be fine tuned to one's liking by adjusting the shutter on the film camera from the normal 180° to something else. I'm guessing they would have to close the shutter more.