Is this act considered disbelief (kufr), or is it an excusable oversight and mistake in Islam?

Whoever watches TV series that contain statements or actions of disbelief does not become a disbeliever merely by watching, unless he approves of the disbelief presented in them. As long as the viewer believes in the invalidity of this disbelief, rejects it in his heart, and dislikes it, he does not become a disbeliever.