The Timex-Sinclair 1000 wasn't a version of the Spectrum -- it was instead a version of Sinclair's previous machine, the ZX-81. The 2068 was the Spectrum-based machine. The ZX-81/TS 1000 was B&W and had no graphics (other than what could be created by special characters). The Spectrum/TS 2068 had color and graphics.