That look nice! Is it better then other launchers?
I use Smart Launcher Pro on my mobile and tablet and it's excellent. But most other launchers, were written for small screens and do not look good on a 50 inch 4k television screen.
This TVLauncher (from Norway) uses tiles like the built in HiMedia 3D launcher. But with TVLauncher you can change the layout of the page, make categories, change the colour of tiles, even make your own tiles (just great an 800x450 image using screen clips or standard company logos, and upload your image to the SD card's Download folder. Then click-and-hold one of the original tiles and select Create in the menu, chose your new image but make sure you give it a name for sorting!)