I think you're missing the point, corporate TV may be entertaining but it is hardly reliable as a source of information. Have a look at the news you get on corporate channels that prioritise entertainment and pushing their own personal agendas over telling people what is actually happening in the world. Compare this to BBC who aren't afraid to tell the truth about corrupt corporations and governments both in their documentaries and news programs as well as actually talking about what's happening in the world rather than the latest Hollywood scandal and telling blatant lies. I think that if Wikipedia choose to advertise they will have to be very careful to not allow the advertisers to have any kind of influence over the content of actual pages. Well, no more influence than the average person anyway.