Note that while the Tudors is listed as a historical drama much of the HISTORY is wrong or misleading.
Facts about people are changed for no reason, dates of events are moved forwards or backward many years to help dramatic effect, people who died natural deaths are shown to have comitted suicide or have been murdered and so on.
As has been said, this is the second series, and while many years have passed, Henry is getting no older and still look like this sexy young man instead of an overweight 40 year old.
This is NOT a historical drama this is a SOAP set in Tudor times.
Watch it for the "soap like" drama, or the sexy men and women, but dont beleive ANY of the facts shown in the program.
You can read more here, and see some of the historical errors
http://en.wikipedia.org/wiki/The_Tudors