Assume that there are 6 gameshows in a week and there is a break of 1 month of shows, the chances of getting a perfect game and years it may take to happen on average:

Perfect 1st Round: 1 in 26,334 - Should happen once in about 91 years and 9 months.
Perfect 14: 1 in 319,770 - Should happen once in about 1,114 years and 3 months.
All reds at 11-box: 1 in 705,432 - Should happen once in about 2,458 years and 1 month
Power 8 at 8-box: 1 in 319,770 - Should happen once in about 1,114 years and 3 months
Power 5 at 5-box: 1 in 26,334 - Should happen once in about 91 years and 9 months.
Dream Finish: 1 in 231 - Should happen once every 9.5 months.

And the chance of having an absolute perfect game (1p in first box, 10p in second box, 50p in third box etc) is 1 in 1.124x10^21!

And that will happen once in about 4*10^18 (4 with 19 zeroes) years!

Forgive me, I was bored.

Intresting!

Thanks for posting!