Image source: Getty Images.

Cable stocks reliant on the shrinking pay-TV ecosystem have gotten cheaper this year as investors worry about disruption from online video options. The pessimism has hit most companies that get a significant chunk of revenue from television advertising.

Today, I'm highlighting two stocks from that hard-hit industry that seem cheap relative to their growth prospects. Discovery Communications (DISCK) and Lions Gate Entertainment (LGF-A -1.33%), whose valuations are both well below their peaks, look like good watch list candidates that have a shot at outperforming rivals in the coming year.

Metric

Discovery Communications

Lions Gate Entertainment

Market cap

$10.6 billion

$3.5 billion

Revenue

$6.4 billion

$2.4 billion

Sales growth

2%

34%

Profit margin

17%

1%

Price-to-sales ratio

2.6

1.4

52-week stock performance

(10%)

(34%)

Data sources: Ycharts, Yahoo! Finance and company financial filings. Sales growth is for the current fiscal year while profit margin is for the past 12 months.

Why Discovery Communications

Discovery, the owner of network channels such as TLC and Animal Planet, is trading around an $11 billion market capitalization -- down sharply from the $18 billion it touched as recently as 2014.

Image source: Discovery.

That slump is largely because sales growth has slowed to a crawl as advertising revenue gains dried up in the key U.S. market. Its most recent quarter saw ad sales decline by 3% from the prior quarter's 5% uptick. Rivals fared better, with Scripps Networks enjoying a 7% ad boost and Time Warner (TWX) posting a 2% improvement.

Yet the company has several valuable assets in its portfolio. Thanks to recent series hits like Fast N' Loud and Deadliest Catch, the Discovery channel finished 2015 with a solid 93 million subscribers in the U.S. Meanwhile, its international division is helping lessen the business's reliance on the mature domestic market. Its Eurosport acquisition pushed international revenue to just under 50% of its business, compared to Time Warner's 36% and Scripps Networks' 29%.

With help from those outside markets and a growing digital presence, Discovery believes it can boost adjusted earnings by around 13% a year through 2018 as its free cash flow improves at about the same rate. Given the stock's valuation of 13 times next year's earnings (a discount to both Scripps and Time Warner), there's a decent chance Discovery will outperform Wall Street's low expectations.

Why Lions Gate Entertainment

With Lions Gate, the market is firmly in wait-and-see mode right now. The TV and movie content producer won't start reporting combined earnings results from its $4.4 billion acquisition of Starz until early next year. Management has claimed that the corporate marriage will bring stronger cash flow and profit growth, consistent with Lions Gate's new status as a diversified and vertically integrated global content platform. But that's no guarantee, especially as Starz' earnings are declining due to huge bets on original programming and the online distribution channel.

The increased scale of the combined company should keep those spiking content costs in check, though. Meanwhile, both Starz and Lions Gate will likely benefit from access to each other's distribution platforms. 

A merger of this size adds complexity -- and debt -- to an already risky situation in which neither company is on solid earnings ground. Those worries have kept many investors away from Lions Gate and helped push the stock down by 30% over the last three years to an attractive valuation of just 1.4 times sales. 

The future is cloudy for Lions Gate and other cable stocks that until recently enjoyed steady growth powered by an increasing base of pay-TV subscribers. Yet through international markets in Discovery's case and a transformative acquisition in Lions Gate's, a few companies are taking bold steps that could pay off over the long term for value-focused investors.