If I recall correctly (haven't owned a TV in awhile), PBS highlighted its "underwriters", certain "sponsors" for specific shows, public services such as local c

If I recall correctly (haven't owned a TV in awhile), PBS highlighted its "underwriters", certain "sponsors" for specific shows, public services such as local cultural events and other PBS shows, and fundraising. The line between "sponsors" and "advertisers" was definitely blurry at times, but it just... felt different than regular TV spots.