Howcast
From the Audiovisual Identity Database, the motion graphics museum
Logo (December 19, 2007-)
Visuals: We see the H of the logo flip through various different symbols, the Howcast logo in blue appears after this
Variant: Starting in 2010, the logo was enhanced, and "original" was added below.
Technique: 2D animation.
Audio: A basic drumbeat, 2 notes play when the logo is revealed
Availability: Seen on YouTube videos from the channel. The animation can be seen here.