There are many Chinese movies and TV apps in Google Play Store. They can be found by simply searching for "Chinese TV" or "Chinese Movies" in Google Play.
In addition to those standard mobile Android app, there are also thousands of Chinese TV, movies, education, games, and utility apps specifically optimized for the TV platform with TV friendly user interface and are designed to be easily controlled with the IR remote. To browse and install these apps on NextD, simply visit http://nextdtv.com/shafa from a browser on NextD, download the Shafa Market APK file using the "Browser" option, then install the Shafa Market app by clicking on the green Download icon on the NextD desktop and launch the downloaded APK file.
If you are looking for Cantonese programs, the EnCore TVB app from Google Play Store offers good selections.