A method and system of the present invention includes the creation and transmission of a MAC header that includes a first MAC header portion and at least two scrambler recovery fields arranged on the two sides of a header FEC portion. Signals representing a call are received at a call agent to generate a detection point. In instances where two frames are utilized for motion estimation of a video sequence, a motion compensated picture of a previous frame and a motion compensated picture of a current frame may be combined to adaptively compute the subsequent weights. The video output signal drives a coupled CRT and corresponding CRT cathode. At least one lock line command is generated from a set comprising a get lock line command with reservation, a put lock line conditional command, and a put lock line unconditional command. The connecting member has a central coil around a rod which acts as a pivot for the locking member and one end of the connecting member is cranked to engage in a recess of the locking member.