A friend made a point about Doctor Who recently which I'd like to think isn't true, but may be...
Viewing figures have pretty steadily declined post Clara and River...which was the last time there was any romantic or sexual undertones between the Doctor and a companion. Even with Clara and Capaldi, you had Clara's love story with Danny Pink and the Doctor's dislike of him/potential underlying jealousy. Then the Doctors complicated relationship with River. Before that Rose, Martha and Amy there was always some romantic tension either reciprocated or not...
My friend thinks this is what has caused the drop in interest, as almost successful shows have some love story plot line. Now, I'd LIKE to think this isn't true as it's such a stupid thing and shouldn't be a necessary feature in a show about an alien travelling through all of time and space...but...do they have a point? Does the show need the Doctor to have a romantic story line for it to bring in the viewers?