I haven't been able to find the average running time for individual episodes (without commercials). Was it 21 minutes? 23 minutes?
I thought of trying to figure it out by the Running Time listed on the DVD packages, but that's confusing because there are bonus interviews, varying number of episodes on different sets, etc.
If I could find this out, I will do some math to figure out how long it would take to watch the entire series, from start to finish. It's been a dream of mine to be able to do this - if only I had unlimited time and funds! Just think, having 8 hours a day with no interruptions, obligations, work ... I wonder how long it would take to watch the entire series ...
Update to the above:
If my calculations are right, and if the average episode is 23 minutes, you could watch the entire series in only 58.7 days, if you watched for 8 hours per day!