No video, No audio

There is one channel that will not get any audio or video, when tuning to the channel, the header displaying the channel and show appears at the bottom, then disappears and a blank screen is all that shows. This is only true for that one particular channel, the others are fine. I received an automatic update around 3am this morning and I'm wondering if that has anything to do with this. Everything was fine previously except this particular channel had a habit of freezing on a semi regular basis