Television was actually fun to watch. Magazines were actually fun to read. Video games were actually fun to play. Hell, playing outside was fun. Playing with toys was fun (even as an adult). Spending time with users on early internet forums was also very fun. Music was much more aesthetically pleasing to listen to (at least the hits of the 00s were, imo). We fidgeted with literally anything we could think of. Pens, rulers, balls (it's not what you think), toys, even our own fingers.
It was really easy to get bored back then too, but at least it was really easy to escape boredom back then.
Magazines were well written, articles were new and fresh. The CNN 24 news cycle brought mass distribution of the news but before that you tuned in for the scheduled news hour you liked