Dish's new set-top box to allow recording 16 shows at once, watch 4 videos simultaneously

Dish's Sling TV online-television service is revamping its apps to focus on content rather than individual channels.

Among other things, the apps will present movies and TV shows based on what you've watched before, like Netflix does, rather than the traditional way of channel by channel. That could make Sling TV's on-demand library — currently hidden behind multiple taps — easier to discover and watch.

The $20-a-month Sling TV service offers more than 20 cable channels, including ESPN, ESPN2, AMC and TNT. Sling TV announced Tuesday that it's adding ESPN3 to the base package, too. ESPN3 is an online channel available to traditional cable and satellite subscribers.

For $5 more, customers can get an add-on package such as Spanish-language networks and even more sports. The service has live streams of those channels, along with selected content on demand. You'll need an antenna for over-the-air channels, as those aren't included.

Dish is announcing the changes as the CES gadget show in Las Vegas opens Wednesday. ESPN3 and the new, content-centric features will be available by the end of March.