The newspaper is probably also known as just "Freitag" (without "der"). Newspaper in German is female ("die Zeitung"). When saying "the newspaper Freitag" it c

The newspaper is probably also known as just "Freitag" (without "der"). Newspaper in German is female ("die Zeitung"). When saying "the newspaper Freitag" it changes to "die Zeitung Freitag". You can leave out "Zeitung" if the context is known and thus it gets shortened to "die Freitag". I'm not from a region where this newspaper is common so I'm just guessing here. This is common when talking about newspapers in German.