ESPN constantly glitching

For many weeks now, I have been having an issue watching ESPN.

The screen continually glitches and starts to get pixelated and pauses.  This interruption happens over and over and over again. It is happening ONLY on ESPN.  Our signal is fine otherwise; all other channels do not have this issue. 

Can someone please let me know if this is a known issue or not? Is something being done about it? I am not receiving the service I am paying for.