Hi there and welcome! I am happy to hear about the world that Doctor Who has opened up for you. It's a great show on so many levels. I still have to find time to get through the classics so I am bit jealous of you in that respect.
I am also in the US (waves at you from Pennsylvania) and I loved hearing about your dogs. I have a 6 year old bi-blue Shetland Sheepdog named Quinlan (Quinn for short) and I have always wanted to try my hand at agility with him. Maybe someday I will have the time and money to do it!