Q: Connecting MacBook to HDTV

Depends on what input plug you'll be using on your TV. VGA, DVI, Composite or HDMI. You'll need a Mini-DVI adapter and a cable from that to your TV. Here's the various types of Mini-DVI adapters on Amazon.com http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=min i-dvi&x=9&y=13
(Composite is the red, white and yellow RCA plugs on your TV or red, white and S-Video plugs.)

If you want to use HDMI you'll need a Mini-DVI to HDMI adapter and a cable from that to your TV. Here's the various types of Mini-DVI to HDMI adapters on Amazon.com http://www.amazon.com/s/ref=nb_sb_ss_i_2_16?url=search-alias%3Daps&field-keyword s=mini+dvi+to+hdmi+adapter&sprefix=mini+dvi+to+hdmi%2Caps%2C416

You'll also need audio cables to the TV if you use VGA, DVI, or Composite using a 3.5mm stereo headphone jack to RCA sound plugs or a 3.5mm stereo input plug for audio. You attach it from the headphone jack of your MacBook to the appropriate audio input plugs on your TV.

If you connect the MacBook using a Mini-DVI to HDMI adapter you will probably need to use external speakers or a 3.5mm stereo headphone jack to RCA sound plugs connected to a stereo system for audio if your TV doesn't have separate RCA input plugs or a 3.5mm stereo input plug for audio with the HDMI plug. You attach it from the headphone jack of your MacBook to the appropriate audio input plugs.

The Mini-DVI to HDMI doesn't carry audio and there're no audio plugs on most TVs to work with HDMI since it's expecting audio with the HDMI. Check your TV manual though to see if it might have audio plugs that work with one of the HDMI ports. You attach it from the headphone jack of your MacBook to the appropriate audio input plugs on your TV.