My work around for this is to do pretty much as Scott says in the video, then for the second text block you need to deselect the photo in the LR Filmstrip, then add your additional text block onto the blank page and pass the paper through the printer for a second time. You will notice that because you have de-selected an image in the Film strip, the Print button is greyed out in LR, so you need to use Cmd+P to get the print module up.