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What programming languages are you familiar with?
One way to do this would be to simply accumulate the records into a buffer, while checking to see that each line is there. As soon as a missing line is found, break out of that loop and go to the next record. If all the lines ARE there, then print the contents of the buffer.
set up main loop to look for lines beginning with "Date/Time".
If found, loop thru following lines looking for 00 thru 08
Add lines to buffer
If line missing, break out into main loop
All lines found
break our into main loop
end inner loop
end main loop