This is compiled from other sources as I do not have access to Time Warner Cable.
Time Warner Cable offers real-time, live programming for customers who own a Roku for no extra charge. This allows customers who do not need added features of a TWC receiver/DVR to enjoy their service on a television with no monthly equipment fee.
Once installed, the app provides access to hundreds of live channels, including most major broadcast and cable networks. The only requirement is a valid Time Warner Cable username and password; that security feature verifies that you’re a current paying customer, and that you’re accessing the stream from within your own home via your Time Warner cable modem.
The experience is not perfect. There’s no traditional program guide. You scroll through a 2D list of channels. There is no closed captioning option on Roku, no on-demand, and no rewind or pause.
The TWC TV app is not compatible with first generation Rokus.
Learn more here.