In an exodus that would make Moses proud, cable customers are fleeing their costly monthly habit for greener pastures.

GigaOM cobbled together user numbers from four of the top five cable companies and estimated that more than half a million customers cut the coax in the third quarter of 2010. Comcast was the largest contributor to the defections, announcing it lost 275,000 subscribers in the quarter, while Time Warner Cable did its part to chip in by shedding 155,000 customers.

If you’ve ditched cable recently, how do you get your TV fix these days?

Big Cable Is Bleeding: 500K+ Subscribers Lost In Q3 [GigaOM via Engadget]

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