a. to youtube , a worldwide , non-exclusive , royalty-free , transferable licence -lrb- with right to sub-licence -rrb- to use , reproduce , distribute , prepare derivative works of , display , and perform that content in connection with the provision of the service and otherwise in connection with the provision of the service and youtube 's business , including without limitation for promoting and redistributing part or all of the service -lrb- and derivative works thereof -rrb- in any media formats and through any media channels ;