ESPN Not Working

For the second time in 3 weeks, I could not watch Monday Night Football because my ESPN does not work on cable TV.  Every other channel seems to work except ESPN.  Comcast sent a tech to my house 2 weeks ago; supposedly fixed the problem, but now it's back.  Comcast wants to send another tech to my house.  Who has time for this nonsense?  In 30 years, I've never had trouble watching an NFL game on cable TV until now.