Hulu Live table - how?

Hey all,

I'd like to make something similar to Hulu's 'Live' table, shown in the pic, where there's standard time blocks at top, but the cells can be smaller (15 min blocks at very bottom) or larger (adult swim EAST's *There's nothing on that this time*) than the standard 30 min block.

I'm a backend dev (and not a great one) and not even sure where to start.

Originally, I was thinking of doing each cell as it's own React component, in a larger table, but maybe Angular would be better? I haven't used either and will need to upskill on whichever would work best.

I dug into the web dev tools but nothing jumps out at me as how this is being done.

Was hoping someone could point me in a direction for how to approach this (please!)

TIA!!!