3 episodes into Black Mirror, are any of them NOT depressing as hell?

there is one but I don't want to spoil it

They are pretty heavy. It's the type of show that I cannot watch multiple episodes back to back.

the one where everyone is on stationary bicycles and locked in rooms with ads really fricked with me for a couple of hours

I watched it as my wife was asleep late at night so it was even more depressing due to the setting

I haven't watched since

They range from depressing to slightly less depressing.