Other broadcasters would provide only limited airtime. Glo Mobile offered Per Second Billing, which charges subscribers for the exact airtime used. This means ensuring equitable airtime for all candidates on each broadcast network. The song gained considerable airtime on alternative rock radio stations. Increased radio airtime and favourable mainstream magazine reviews and interviews further increased their public exposure. C31 is primarily funded through sponsorship, grants, sale of airtime and member donations. It gained considerable airtime on MTV. Gwin took four people hostage and demanded nationwide airtime. Even eight hours of airtime was not enough. The airtime feature separates wave turns from typical banked turns. Cronkite was a vocal advocate for free airtime for political candidates. Hannity demanded a formal apology and double the airtime. Segments by Habimana accounted for approximately 33% of RTLM airtime. It benefited from these drugs in the ever-increasingly competitive fight for airtime and media attention. PBS is funded by government grants and the sale of commercial airtime.