Playing N64 thru VCR?! #Help

I CAN see the game (very faintly) through the blue screen on my CRT tv, so I know it’s connected. I’ve also tried both channel 3 and 4 on the VCR and TV.

I have the VCR hooked up to my TV, and the N64 is hooked up to the Line Out A/V ports.

I tried putting them in the Line In A/V port to see if that would work, but it doesn’t and I don’t see the game at all on the screen this way.

Anyone know what I’m missing here?! My CRT has no A/V ports so my only option is through VCR. Much appreciated!