PBS

===On-air fundraising===
Since 53% to 60% of public television's revenues come from private membership donations and [[Grant (money)|grants]],<ref>{{cite web |title=Public Broadcasting Revenue Fiscal Year 2005 |url=http://www.cpb.org/stations/reports/revenue/2005PublicBroadcastingRevenue.pdf |publisher=[[Corporation for Public Broadcasting]] |access-date=March 10, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110515140419/http://www.cpb.org/stations/reports/revenue/2005PublicBroadcastingRevenue.pdf |archive-date=May 15, 2011}}</ref> most stations solicit individual donations by methods including [[fundraising]], [[pledge drive]]s or [[telethon]]s, which disrupt regularly scheduled programming. This has been perceived as potentially annoying since regularly scheduled programming is often replaced with specials aimed at a wider audience (such as music specials aimed at the [[Baby Boom]]er generation and financial, health and motivational programs) to solicit new members and donations; during fundraising events, these programs are often interrupted within the broadcast by long-form segments (of six to eight minutes in length) encouraging viewers to donate to their PBS member.<ref>{{cite web |last=Getler |first=Michael |title=Pledging Allegiance, or March Madness? |url=https://www.pbs.org/ombudsman/2006/03/pledging_allegiance_or_march_madness.html |publisher=PBS Ombudsman |date=March 24, 2006 |access-date=May 22, 2006 |archive-date=April 8, 2006 |archive-url=https://web.archive.org/web/20060408140959/http://www.pbs.org/ombudsman/2006/03/pledging_allegiance_or_march_madness.html |url-status=live}}</ref> [[Underwriting spot]]s are aired at the end of each program, which differ from traditional commercials in several ways.<ref>{{cite web |title=Rule 5: Content Guidelines |url=https://www.pbs.org/producers/guidelines/onair_rule5.html |url-status=dead |archive-url=https://web.archive.org/web/20140414070210/https://www.pbs.org/producers/guidelines/onair_rule5.html |archive-date=April 14, 2014 |access-date=April 13, 2014 |publisher=PBS}}</ref> Each spot must be approved to meet several guidelines.<ref>{{cite web |title=PBS Guidelines for On-Air Announcements Promoting Program-Related Goods and Services |url=https://www.pbs.org/producers/guidelines/onair.html |url-status=dead |archive-url=https://web.archive.org/web/20140414090628/https://www.pbs.org/producers/guidelines/onair.html |archive-date=April 14, 2014 |access-date=April 13, 2014 |publisher=PBS}}</ref> The main guidelines state that underwriting spots cannot be qualitative in any way, nor can they have any call to action.<ref>{{cite web |title=Rule 5.4: Voice-Over Copy Guidelines |url=https://www.pbs.org/producers/guidelines/onair_rule5.html#5.4 |url-status=dead |archive-url=https://web.archive.org/web/20030923073228/https://www.pbs.org/producers/guidelines/onair_rule5.html#5.4 |archive-date=23 September 2003 |access-date=April 13, 2014 |publisher=PBS}}</ref>