> Remember when Cable TV offered an ad-free television viewing experience, for a monthly subscription fee?
No, I don't. Nor do most people reading this.
In fact, I don't know what country you're talking about, but in the US virtually all TV channels - the subscription channels like HBO excepted - in the US provided over cable TV have had ads. That's because cable TV started purely as an alternative to antenna TV to relay the affiliates of the major networks to places that had poor reception. Over time cable-only TV channels were added to the line up, and some started off without ads, but most quickly included ads as they developed. MTV and CNN have always had ads, from day #1, and they're the two channels most people think of as the OG cable-only channels, although of course they weren't the first, but their predecessors were never as significant or as influential.
This "Cable TV was once Ad free" thing is largely a myth - I'm not saying there were never ad-free channels in the cable line up, but it was so early in cable TV's "More than just the broadcast channel" line up it barely is worth mentioning. Those channels played no part in the development and popularization of the format. Most cable TV growth happened long after the last free ad free channel adopted ads.