No 24p: (23.976
and 24fps video output) on Fire TV Stick DRM streaming devices. Same applies to the FireTV1/2, Google Nexus, ATV 2/3/4, Mac's running OSX, WeTek Play and Rockhip SoC's also.
Even if you can switch a TV's display to 24Hz, there will be a video frame glitch approx every 41 seconds when you play 23.976fps video at 24Hz. This is a Kernel / Video driver limitation.
Known 24p compatible devices:
ATV1 running a Linux Kernel, nVidia Shield, RPi, Intel Haswell Microarchitecture and above, MINIX AMLogic devices, nVIDIA Graphics Cards (confirmation needed), AMLogic S8XX running a modified Linux Frame Rate Automation Kernel - like the ODROID C1+ , WeTek Core, Haswell equipped Mac's running Windows or Linux.
Smooth 24p playback of 23.976fps content in Netflix:
- nVIDIA Shield (24Hz has to be manually selected every time before Netflix App startup via the TVHZ App)
(Plus you then have to manually reselect 60Hz when you are finished for Shield use with other Android Apps)
- WeTek Core (all automatic)
In fact on the Core if say HBO Go streams video at 23.976fps (or any other 23.976fps video streaming App), you can set that up to Autoswitch the TV into 24p mode as well via a nice little custom WeTek autoswitch refresh rate configuration App.