In a mood for the strange tonight ergo ---
Twilight Zone - Great concise writing, excellent black-and-white cinematography (except the last two seasons, which were on video unfortunately) and those ever enigmatic voice overs by Rod Serling.
Outer Limits - Imaginative strangeness, thoughtful twisted plots and general darkness.....do not adjust your TV....we will control all you see and hear.
The X Files - For the overall somber, paranoid mood, for the main theme, involving all the boogymen of modern conspiracy/paranoia and for the off-topic episodes for doing plots about any sort of off-reality strangeness.
Lost - I'm not sure it was as poetic as my first 3 choices, but watching the whole plot roll out and trying to figure out just what the fu*k was going on on that island was always fun. It helps that Terry O'Quinn lives near me and occasionally is seen in the mall or whatever.