I have a Mini DisplayPort to VGA adapter, then I purchased 3 VGA adapters: a VGA to HDMI, VGA to Component, and VGA to RCA. When I hook them up to my TV (I've tried multiple TVs) they do not detect a display, even when I click Detect Displays.

Virtually every TV set, monitor and projector made in the last five years has a VGA input, so with your MDP-VGA adapter and a standard VGA cable you should be set to connect in at least 90% of all likely situations. For devices with HDMI inputs, forget about stacking two adapters; get a real MDP-HDMI adapter and a standard HDMI cable. If you still find it necessary on occasion to connect to antique TVs with Component or Composite inputs (both of which use RCA ports), you'll have to buy a converter box and cable for each protocol to use with your MDP-VGA adapter. I wouldn't bother with those; no one who's anywhere near up to date is still using that stuff, and the extra bulk would be a lot to carry around for the rare occasion when you might use it.

None of the three lower adapters pictured in your post will do you any good with your MBP.

1. The VGA-HDMI adapter does the reverse of what you want: it yields VGA output from HDMI input. The opposite is not possible; a VGA input does not contain all the information necessary to create an HDMI output. You'll have to get a direct mini-Displayport-to-HDMI adapter instead.

http://store.apple.com/us/product/H1824ZM/A/Moshi_Mini_DisplayPort_to_HDMI_Adapt er?mco=MTY3ODQ5OTY

2. VGA-Component: Lots of posters here when the MDP-equipped MBs and MBPs first came out tried adapters like this one with no success. What does work with the MDP (and a VGA adapter) is a converter box like this:

http://www.amazon.com/Startech-Component-YPbPr-Video-Converter/dp/B000G6Y0S6

3. VGA-Composite: This doesn't work with MBPs either. For Composite or S-Video output, you need a converter box like this:

http://www.amazon.com/PC-To-TV-Video-Converter/dp/B001CJOLBW/ref=pd_cp_e_2

or this:

http://www.startech.com/AV/Converters/Video/High-Resolution-PC-VGA-to-TV-Convert er-with-Remote-Control~VGA2NTSCPRO

These converter boxes will work fine in combination with your Apple MDP-VGA adapter.