You must use different link for this case
RD4NhKWZpkw1Q#t=0
gdata.youtube.com/feeds/api/playlists/(here your playlist) like RD4NhKWZpkw1Q#t=0
https://gdata.youtube.com/feeds/api/channels?q=channelsweb&start-index=11&max-results=10&v=2
https://gdata.youtube.com/feeds/api/channels?q=(here your...