Wonderful Topic!
Like most fans its a mixed bag. Sure the geek in me enjoys finding out legitimate information about upcoming movies, cartoons, comics etc.. (Not the click-bait garbage on Yahoo etc...). Pictures, trailers and the like do not spoil the excitement for me. However I do remember when it took a lot more "effort" to be a fan of something.
I remember in 1989, I was watching Entertainment Tonight, probably sometime February, when I first heard a Batman Movie was even coming out. They had the full trailer and everything. This was all kids at my school could talk about the next day. The film had been in development for years, but most ordinary folks didn't know until a few months before the films release. Perhaps some fanzines probably had information as much as a year in advance, but many people were not tuned into them.
Additionally I remember the summer of 1990. having moved 100 miles away from family/friends, I was only allowed to talk to friends on the phone once a week because of long-distance charges. So I spent a lot time hand writing letters to friends. Additionally I spent a lot of time scanning TV Guide for movies & TV shows I was interested in, and writing to TV stations, corporations etc... Trying to find out as much information about the potential of certain films airing on local stations, or being released on Video. Man I don't think I ever wrote in High school so much as I did that one summer prior to it. Still I got some pretty cool stuff.
Celebrity Home Entertainment (The people who released the Sandy Frank versions of Gamera films on VHS) sent me their catalogue along with some cool promotional pictures. WEP sent me some cool Voltron promotional pics, artwork, and even a complete episode list, long before one ever appeared on the Internet. Also I found out that they had 3 Vehicle Voltron VHS volumes for sale. Why they were not promoting this was beyond me, but I purchased those by mail right away. For Years I was "The Guy" in my circle of Friends who had some "lost" episodes of Vehicle Voltron.
There are no more good TV Shows, only ones that haven't disappointed me yet.