[2] With some tweaks to characters and using 2px for space[4], I think you can get e.g. "the quick brown fox jumps over the lazy dog." into 158px (61.7% of a line) instead of 344px. One of the headlines shown ("[2] Is Postgres read heavy or write heavy?" would fit into 149px (58.2% line) rather than being truncated to "[2] Is Postgres read heavy or..."
[0] Although slightly distressing because I certainly read this at the time and typed it in to play around with but had lost all memory of it. Ah, age.
-edit-: Also I had completely forgotten all about the channels and streams shenanigans.