AMC Networks is reportedly in the planning stages of launching a commercial-free streaming service that would be accessible to subscribers of its channels, according to a Reuters story today. If true that would differentiate it from stand-alone services like the ones offered by HBO or CBS, which don’t require a cable subscription. According to Reuters’ sources, the new service is “considering” a monthly price point of $4.99-$6.99 for content including AMC’s flagship The Wa…