new bathroom in the TV show

It is a well known fact that many TV series have been popular only during their first and second season. Sometimes, when the show is really great and a lot of people is still watching it, there is a third season. Of course there are also examples of shows that had more than 7 seasons, but those are usually exceptions, perfect series. The truth is that most of the time, there are only two seasons of a certain series. Mainly because we become so used to the actors playing in it that we are no longer surprised by them. The plot seems to be a little bit repetitive and we can predict how a certain episode is going to end. That makes us bored and we no longer want to watch it. That is why producers use different tricks to change it. For example, in the show I really like I have noticed that there is a new bathroom recently. That is a detail and you might think that it is not important but the truth is that it makes a difference. Even though it^s just a new bathroom you feel that something is different and you start watching at this episode with more curiosity than ever. I think that it is a good idea to introduce such simple and effective changes in various series. This can make them interesting for a longer period of time than just two seasons. Do you agree with me?