QVC problem

From time to time there have been posts about QVC taking over the box, where it goes there instead of  where you want to be.  That happened to me a few weeks ago and happened again tonight.  I almost never go to that channel to watch, but it became clear to me today that if I happen to click on QVC for even a second, it triggers the problem.  A 4 minute restart corrects it.  Maybe a Comcast engineer should look into this.