According to three sources with knowledge of the situation, Time Warner Cable Inc’s carriage agreement with Current TV stipulates that, if the left-leaning political news network fails to meet a minimum threshold for overall viewers in a given quarter, financial penalties such as Current TV being required to increase marketing and promotion spending on the cable operator’s systems are triggered.

If Current TV misses the audience benchmark in two consecutive quarters, another clause is triggered that would allow Time Warner Cable to drop the channel. The condition was built into the most recent distribution pact between the two parties, which was signed in 2010.

“Time Warner Cable has been flirting with the idea of pulling Current off its systems for some time now,” said one of the sources, who all spoke on condition of anonymity…

Based on the 47,000 total viewers who tuned into the initial broadcasts of Spitzer’s “Viewpoint,” the source said that “just enough people are tuning in to keep Current over the quota.”