Is it just me or are these Jameson commercials much more entertaining then the actually featured video?

What's the difference? You're their all-time bestseller!

Would Walt know that his brother-in-law is the super hero?

Don't be ridiculous. After the next season, Walt and Jessie would become the undisputed drug lords of North America. Walt would then have to systematically kill all the other world king pins( wearing the hat of course) and at the end of season 6, Walt would become the world's first King of the Drug.