Village Gal;
Bravo for getting your husband to agree to go for the day.
If he decides he loves being in TV, you might want to consider staying overnight at the Marriott in Spanish Springs. It is a short walking distance to the square as you mentioned he tires easily.
The suggestion about the trolley tour is excellent and hearing a great band in the squares mght help him to see TV is a wonderful place to live in. If you arrange to meet some of the members of this forum would be a big help to see how wonderful people are.
As always, the members have provide great suggestions.
I hope your visit is memorable to you and him. Best Wishes.