I watched HBO and more specifically, Lethal Weapon at 5 yrs old in the 90s. I more or less understood the plot. I think that says more about the plot than my age at the time lol.

My parents weren't concerned about anything that wasn't outright pornographic. If it was on TV before bedtime, I could watch it.

I was fan of Mel Gibson for a long time as a result, which hurt pretty bad after he came out as a foaming-at-the-mouth racist/misogynist.