Color Time Base Corrector (TBC) is a core module for external video input into the LZX Visionary system. In order to mix multiple video sources together within the system, each source must be running in synchronization with the others. Additionally, NTSC/PAL sources must be decoded into color and luminance channels (YRGB) for patching and manipulation inside the video synthesizer. This module provides these functions cleanly and easily: video goes in via the S-Video or Composite input jacks, and the YRGB outputs are available for further processing. The number of simultaneous external video inputs to your LZX system is limited only by the number of TBC modules.