Best output file for TV playback

Apple Devices gives you the most options including HEVC 10-bit and HDR.

Set the name you want in the the project’s Share pane. It doesn’t have to be the project name. You can set the same name as you will use for the file.

H.264 is a good codec, very widely used, and will play on pretty much anything. HEVC creates smaller files at better quality and is used by Apple TV. The 10-bit format is better in many circumstances than the 8-bit format and is also supported in Apple TV.

HE stands for high efficiency. It really is the best codec available for compression at the moment. It’s not as widely supported yet as H.264, which is its only drawback.

When you gave it a unique name do you mean the export file name, because that's what that is, the name of the file on your hard drive. The display name of the movie is the project name or whatever is set in the project's Share section in the inspector.

It depends on which codec the target TV happens to support.

I realized that I should test if my oldish LG OLED55B6V supports the newish 10-bit HDR from new iPhones.

My Mac mini 2018 & LG UltraFine 4K do support that but my old iPad Pro 9,7" A1674 does not sync 4K HEVC (4K AVC OK), and does not correctly display 10-bit HDR/HLG so I use FCP to convert selected clips to 8-bit, H.264, or HD (I do archive the best original "raw" clips).

Then that TV also does not properly support some frame rates. I recently used a service to convert 18 fps Super 8 films frame-by-frame to ProRes and initially wanted 18 fps files. But the service insisted using some standard like 25 fps and then slow the output that to whatever frame rate I wanted for delivery. And they were right, DaVinci Resolve can output 18 fps but the movements are somewhat jerky when viewed on that TV. 25 fps is smooth although some frames must be duplicated here and there.

My guess is that almost nobody will notice a difference, but rather than fixating on the “best” settings, do some test exports and decide what looks best to you.

It depends a lot on tour computer. Test a 10-bit export. If your system can handle it without too much strain it will give you better color rendition, especially for any gradients in the image.

Yes. The larger file has a higher bit rate.

That should be fine for the gray majority of video except the most difficult to encode.

Simplest can often be best.

Try these settings . . .

They will give you a high quality, quickly encoded file in an .mp4 format that is almost universally compatible and I don't think you will be disappointed.