Samsung TV only plays AVI encoded with Divx 3.11/4.x/5.x/6.1, XviD, H.264 BP/MP/HP, MPEG-4 SP/ASP, Motion JPEG. If your AVI files are encoded with other codec, Samsung TV will not play. And it's hard to find the right codecs and install them accordingly. Frankly, there is a smarter way to get rid of the incompatibility issues quickly - encode AVI to Samsung TV friendly format.
To finish the task, finding a third-party tool to make everything easy. If you are seeking for the best video output quality, fastest video conversion speed, and the most formats supported, Dimo Video Converter Ultimate will be your best choice. It's a professional yet easy-to-use app which can help us convert AVI to Samsung TV accepted AVI videos without any quality loss.