CMSV S2P1 is finally here).

Credits:

Montage — Kinemaster (Android).
Fractal render — Mandelbrowser (Android) — all the variations are rendered here.
Music: in the video.
Font: mine, copied from a Samsung CRT OSD. Links to download it will appear soon never. I'll upload a teletext font instead).

There are formulas that weren't displayed because they're enormous:

407.
INIT:
complex firstx,firsty,secondx,secondy;
ITER:
firstx=z.x*abs(z.x)+abs(z.y*z.y);
firsty=z.x*abs(z.y)*-2i;
secondx=abs(z.x*abs(z.x)+abs(z.y*z.y));
secondy=z.x*abs(z.y)*2i;
z=(firstx+firsty)*(secondx+secondy)+c;

420.
INIT:
complex zh,u,k;
z=c;
ITER:
zh=abs(z)^a/conj(z)^b+c;
u=zh/abs(z^d/c);
k=u+c*z^f+c;
z=zh u k;

440.
INIT:
z=1i^a c;
ITER:
z=1i^a(max(abs(z)/(z^2-abs(max(z,c)))/abs(1+z^2),c));
z=z^2+c;