No name bitter was on though I didn't try it, not sure if they brew it or not. Tried to visit the Harrow last week(currently working not too far away) but sat nav told me I had arrived whilst in the middle of the north bound A3! Afternoon closing time was looming so will try again in the next week or two.
Opening times vary throughout the year, with the pub closing mid-afternoon. Hope you have fun with the landlady!