Building a Better PA is an independent expenditure organization, which means it can raise and spend unlimited funds as long as it does not coordinate with a candidate's campaign. The PAC uses in the commercials some of the video Boyle, a Northeast Philly Democrat, made publicly available on his campaign YouTube channel.
That reminded us of a hilarious March 13 The Daily Show bit, where host Jon Stewart made fun of U.S. Senate Minority Leader Mitch McConnell, a Kentucky Republican. Stewart, noting that McConnell had made publicly available "b-roll" campaign video of himself, asked his viewers to edit in their own music and share it via the hashtag #McConnelling.
See the Daily Show video for a tutorial on this. And here's a collection of top #McConnelling examples compiled by Buzzfeed.