I practiced out to 60 yards 5 days a week from July through the end of september. I did this for 2 reasons; I wanted to win our annual archery tourney(which I did) and by shooting at 60 yards, 30 would be easy. I took my 2nd doe at 35 yards this year, in part due to my confidence @ 60 yards. If a deer presented itself at 60 yards and I felt it was my only shot, Iwould take it. Would I rather have a closer shot...sure. For all of you who say thats too far, too many things can happen...thats BS. Those things STILL happen with a 20 yard shot. How many times have you heard "jumped the string" on a 20 yard shot? TONS. It all comes down to what you feel comfortable with. The guy on TV obviously has some skill to hit a deer @ 60 yards. Do you think he had never taken a 60 yard shot? I bet he practices all the time @ 60 yards.
It all comes down to the circumstances, plain and simple. If you have never even sighted in your bow to 40 yards, then by no means should you EVER take a long shot. If you practice and are a good shot at long distances, and the right circumstances allow you a shot...take it! My 2 cents for the day.

Good luck on whatever distance you shoot