The reason Israel does not release videos is because Palestinians go through the judicial system, have a trial and if found guilty, serve their sentence. They have Red Cross visits, family visits, conjugal rights, medical care and a free education if they want to take advantage of it. Not to mention TV etc.
Yemen's Houthi rebels commit to peace plan in letter to UN chief, BBC reports (Haaretz)
from the article: Gilad Shalit in video: I've been longing for my freedom for a long time