question: warning: to reduce the risk of fire or electric shock, do not expose apple tv to rain, liquid, moisture, excessive heat, or naked flame.
Capitalize this past sentence correctly.
A: WARNING: To reduce the risk of fire or electric shock, do not expose Apple TV to rain, liquid, moisture, excessive heat, or naked flame.

question: previous item: overriding standard rnw css settings - custom css…
Capitalize this past sentence correctly.
A: Previous item: Overriding Standard RNW CSS Settings - Custom CSS…

question: last night it was at 0400 utc.
Capitalize this past sentence correctly.
A: Last night it was at 0400 UTC.