Deleted this because it doesn't really fit the trope. C Ounting days since something happened isn't the same as counting days without something happening. Also Olberman's off the air anyway.
Occasionally used to count other things, though none have lasted as long. 'Days since the start of the Deepwater Horizon oil disaster' is the most recent.
The most common one now seems to be "X days since Republicans took control of the House. Mr. Boehner, where are the jobs?"
Deleted this because it doesn't really fit the trope. C Ounting days since something happened isn't the same as counting days without something happening. Also Olberman's off the air anyway.