'Sabrina' star to keep potty training blog

Melissa Joan Hart is to start a blog about her efforts to potty train her eldest son.

The Sabrina The Teenage Witch star will chronicle two-year-old Mason's learning process for the next two months in a bid to help other parents.

Hart, who gave birth to second son Braydon in March, is taking part in a new Pull-Ups training pants project to mark Potty Training Awareness Month.

She said: "When Mason first showed signs that he was ready to use the potty, my husband and I were really excited and - more than anything - proud.

"Potty training is one of the first times I'll be able to act as a teacher to my son, and that adds a little pressure."