Can you provide an example of a show you can't find in Channels? I am seriously not understanding what you are finding so difficult.
If I want to find a movie, its either in Kids>Movies>All or its in Movies>All. Both are in alphabetical order. I have about 500 Movies in Channels and I can get to a Movie as quickly as it would going into something llike Netflix, going to search, and then typing in the name.
If I want to find a show, its a toss up if it was something recorded today, or something recorded in the past. If its in the past, I start just like with Movies above. Once I've found the show, I click on it and all the Episodes are organized by season and episode. You can set whether you want oldest first or newest first in the settings. If there are a lot of seasons, I click up and scroll seasons then down and to the episode. If not that many, I just scroll the episodes. I have shows with 300-400 episodes in Channels and I can find the episode in a few seconds.
Often times the show I want to watch was recorded today. In that case I go to Recordings and just scroll through what was done today and find it very quickly.
There is also the Up Next view of shows which is quick if its a regular series and just looking for the next one. Many of the shows I frequently watch are there and I see it before I even get to going further.
No Waldo required. Its different from Tivo, but certainly not as dire as you are portraying. Maybe they will add new views, that would always be great.
Personally, I'd rather see them spend the effort on getting channel and favorites management sorted to handle a large number of channels organized on multiple streaming devices in the house. That is something that is very challenging if you have hundreds of channels and multiple devices to manage.

