Here is the GFS. You can go out 72 Hours. You can view frames at specific times utilizing the timeline above the map. The map fits on my HDTV without scrolling using a full screen browser.
Legends are shown below the map (scroll down). The rest should be self explanatory.
Now I need to do the same for NAM and HRRR. For the time being I am incorporating these changes into the desktop version. That said, I will most likely create a link specifically for HDTV. You can use this on your firetv or other similar device. My firetv gave up the ghost recently after about 10 years. Currently I am using a "tablet" that runs windows 10 and has hdmi out. I use this equipment for my media center as well. All functionality is accessible through use of a Logitech Harmony Hub and Remote. I also use this system to control my Lights, Television, Cable Box, etc, etc. Probably more than most needed to know.