This tutorial explains how to download private videos & playlists, or rather: videos you need to be logged in for. I can't guarantee this will work for every service out there, but it for sure works ...

Denise Austin shares the simple habits that keep her fit at 68 At 68, Denise Austin reveals how daily walks, core work, and smart eating let her still fit into her ’80s–’90s swimsuits and leotards.