Coming back from a channel page hands that channel's card the focus, but the
handle only wins when the card is still in the rows. A channel that was
renamed, unsubscribed, or simply never carried in the rows left every row
asking for no focus at all, so opening Channels from the drawer put the remote
nowhere: "when I click on Channels, none is selected, it should behave like
video cards" (#32 review). The fallback row is now chosen by whether the
handle exists anywhere in the rows, and a row whose wanted card never became
focusable takes its first card instead of staying unselected.
Jeena
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