This is how Knock Out sees how important Hearth's Warming Eve is goes in A Hearth's Warming Tail.
[We see Starlight finishing the story]
Starlight Glimmer: And that was how Snowstorm became the bot he was meant to be and didn't intend on erasing the holiday from existence ever again. The end.
[Starlight puts the book away]
Knock Out: That was the best story I've heard since the days of the war.
Starlight Glimmer: Yeah.
Knock Out: And I think I'll be hearing a whole lot more.
Starlight Glimmer: I'm sure you will.
Knock Out: I sure am glad I didn't think of erasing the holiday.
Starlight Glimmer: Me too.
[Starlight walks out and Knock Out decides to join her]
Starlight Glimmer: Happy Hearth's Warming, Knock Out.
Knock Out: Happy Hearth's Warming, Starlight.