detecting means connected to said delay means for detecting phase relations between the sampling clock signal and {HEAD ~ each} of {TAIL ~ said delayed video signals} 
of
detecting means connected to said delay means for detecting phase relations between the sampling clock signal and { HEAD ~ each } of { TAIL ~ said delayed video signals }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL