Do you know if this GoPro Slice produces a file that is the original resolution of your original video, and what type of file it is? After editing short GoPro videos of my windsurfing or other family activities, I put the files on an external hard drive and plug the drive into my TV with USB port, and watch on TV. The original gopro Studio created such videos in original (or lower) quality. My TV is able to play most video files like mp4 and wmv.

David Mark wrote: www.cosmic.org.uk/blog/splice-easy-use-m...eo-editing-app-gopro
I don’t know /don’t care/ about this kind of details, but Splice asks you what resolution you want your video to be exported or saved in and the Video Editor in Windows 10 gives you 3 options: small , medium, large, with large being the file type to be watched on tv or other big screens.
www.google.com/amp/s/www.howtogeek.com/3...en-video-editor/amp/