There are lots of airline ads on youtube but there are some that were filmed at EWR. Mostly dating back to the 1980s. It's pretty obvious and many are tacky. All you EWR buffs check them out. EWR was quite the filming location back then.

1. United: This one is pretty New Jersey from the beginning because you can see the NYC skyline, lots of greenery and the taxi rides through a toll. The exteriors of terminal A are featured.
http://www.youtube.com/watch?v=as-2-3a5xU4&feature=channel_page

2. United 1984: Interiors of Terminal A in the check-in area. Ad features UA's new service to ATL, LIT, MEM, and BNA, not from EWR but from ORD.
http://www.youtube.com/watch?v=C7TzMdKdsS0&feature=channel_page

3. United: I'm not 100% but I'm pretty sure that this ad was filmed in one of the UA satellites. You can tell because of the windows.
http://www.youtube.com/watch?v=qJIw7Oqemq4&feature=channel_page

4. United: This is a pretty ridiculous ad but has the walkway of one of the satellite spokes as well as a dolley shot the UA check-in area.
http://www.youtube.com/watch?v=3pk4S3lM2Rg

5. Piedmont: Features their gate area. Very 80s EWR.
http://www.youtube.com/watch?v=m0GjRSo9mLA&feature=channel_page

6. Eastern: Movie Clip: And last but not least the most over the top and ridiculous clip of the day: a movie clip that features Eastern at EWR terminal B in "Outrageous Fortune." Lets just say you could never get away with something like this at EWR today:
http://www.youtube.com/watch?v=3ESu_iXDWpA&feature=channel_page

Enjoy!