Compare mode

[fdezwonders]

I'm requesting a feature be added: a compare mode.

For any platform, a user can choose a "compare" option and search two channels. Once the two channels are chosen, the user can see the estimated time in which they are projected to pass each other (similar to Tracky), and what is the difference between the two.

Of course, take you time with this, and if this feature can't be added, that's fine!