Tonight’s “Keeping Up with the Kardashians” may be key to its survival on E!

Last week’s show scored their lowest number of viewers in years– just 809,000. It was the 35th most watched cable show last Sunday out of 50 entries.

The last time I wrote about the K’s ratings, they had settled into an average of 1 million a week, off about 400K from their past average.

But three weeks ago they dipped under 1 million for the first time to 919,000. The next week they were back up a notch over to 1.061 million. But then last week the whole thing collapsed.

I don’t know if this has anything to do with Kanye West, or the family’s basic odiousness. But if tonight’s show– we’ll see results on Tuesday– doesn’t bounce back, the party may be over.

See you Tuesday.