A chronological viewing order of the Texas Chainsaw Massacre movies, The Original Timeline.
There are three timelines in the TCM franchise. The first begins with the original The Texas Chainsaw Massacre (1974). It has a sequel in TCM2, and reboots pretending to be sequels in TCM3 and 4. The second starts with TCM: The Beginning and proceeds into the 2003 remake, The Texas Chainsaw Massacre (2003). The third timeline begins with Leatherface and then proceeds through the 1974 original to the TC3D movie.