The paranormal sparks some sort of interest in almost everyone. Most paranormal shows are VERY good, well written, but like said some people are afraid to watch them, some people fear the paranormal, some people are biased, and the shows are frowned upon.
The current TV trend SUCKS, in America atleast. There are literally hundreds of sitcoms, all about the same few things: Rich people, parties, lame jokes. It's all based around crude, badly written, and utterly annoying sexual humor or drugs, and the whole show revolves around sex. I do not find that entertaining at all, nor talking about body parts funny at all. It's extremely annoying. I would much rather the best late night show ever, The Red Green Show, or something paranormal. An example of a terrible new show is The Mountain. It has great potential, but the story quickly seems to have turned into all about the young owners getting laid.
I could rant forever, but the bottom line is that paranormal shows are usually shunned by the networks that air them, put on at terrible times, and sometimes the shows themselves are biased.