The code here is so simple, is it worth creating a component? One class hides the checkbox
and a class() responds to the bound value.
My name is Sir Launcelot of Camelot
To seek the Holy Grail
Blue
Sir Robin of Camelot
What is the capital of Assyria?
Sir Galahad of Camelot
Blue. No yel--
It is Arthur, King of the Britons
What do you mean? An African or European swallow?
RealArthurKingOfBritons
SirLauncelot
SirRobinTheNotSoBrave
SirNotAppearingInThisFilm
HolyHandGrenade
VorpalBunny
Blue
Chartreuse
Lilac
Pink
Red
Yellow
Note that the video stuff is driven mainly by \`timeupdate\` events which are
not fine-grained for security reasons. Also, while the playhead position will be
synced across windows, the user interface may not update correctly.