Recreation using Blender of the 1991 BBC 2 neon sign ident. The music is taken from the original.
The neon light is a gradient PNG used as an emission shader. The animation was made by simply keyframing the emission strength for each sequence.
The reflected light off the backdrop behind the 2 box was difficult to recreate. The method used involves a dark transparent shader infront of the 2 to set the lights bright enough to illuminate the backdrop without washing out the inside of the box. This was not optimal.