Hosta Registry - http://hostaregistrar.org/detail.php?id=150
MyHostas - http://myhostas.be/db/hostas/Alan+Titchmarsh
Hosta Library - http://www.hostalibrary.org/a/alantitchmarsh.html
I noticed a description saying this plant is like Gypsy Rose. But I always thought this plant had a brighter yellow center then Gypsy Rose. So I went out to compare leaves this weekend and they do look similar.
Here is Alan Titchmarsh with Striptease on the right edge.
Here is a leaf comparison - a Gypsy Rose leaf on the left against the Alan Titchmarsh plant.
The registry information states:
I looked through my old photos and found an example of what they described and why I thought it had a bright yellow center.Seasonal Variation: center darkens to yellow, then fades to pale yellow
Here are some photos from 2011 taken later in the season. From the first photo you can see the bright yellow center.
Even later in the season the center goes to white. Here it is in late August. (My garden was hit with a hail storm in early August that's why everything looks ratty.)