Melissa Gilbert speaks out in the wake of husband Timothy Busfield's arrest for alleged child sex abuse crimes, as he maintains his innocence. In the promo for her first interview since the arrest, Gilbert describes the situation as 'the most traumatizing experience of our lives.' The full interview will air on Monday, April 6, on ABC's 'Good Morning America.' More from Entertainment Tonight: / @entertainmenttonight Exclusives from #EntertainmentTonight : • NEW From Entertainment Tonight