Why so many repetitive commercials

Why is there so much repetitive commercials?  What is disturbing is the commercials are usually the same repeated seven time during a program viewing.  Most of it is for programs that are already on the channel you have paid for.  I don't understand how airing too many redundant programing notices is productive to the business.  If there is some advertizing individual who thought this was a great way to promote content, they're an idiot.  I think the one reason I will discontinue the service is because  of these programing commercials.  I will usually wait and view it later and skip through the programing.  Why do you think Hulu and Netfex are becoming so popular.  Why do you think Time Warner linked up with Netflix.  You all know this is the coming wave are maybe are putting your head into the grown.  We want to watch the programs we like without the 40 minutes of junk that gets rammed into it.  This should be pretty obvious to those at the top.  In case is isn't please express that to them.  I know the baby boomers may not have a desire to change, I know the next generation wants the programs that they like, viewed when the can actually watch it with little commercial content.