Al Roker has been using his platform for an incredible reason and is sharing regular inspiring videos on Instagram following his prostate cancer surgery in November.MORE: Al Roker's home is a better take on the Hamptons - see inside Just before the weekend, the Today show host – who walks every day – admitted that he had to have a conversation with himself to feel motivated to go out, but was pleased that he did.What's more, Al's followers were inspired by his determination, as he posted footage