It may be a common mistake, but it's still a mistake! From the program titles, it seems that English may not be the local language of the publication you are quoting from.
Google is a nice place to know how people are using English. But we should be careful in using Google as a corpus to know right usage of English. Online there are many contributors who don’t write English correctly. Some of them may be non-native speakers, some may be not-well educated native speakers, and still some may be careless writers. "Every Tuesdays" is incorrect but