Did your MX package come with Freehand? I had the original MX package and it did, not sure about 2004. If this is the case you are best off using Freehand, Macromedia's vector program most similar to Illustrator. The vector graphics can be exported as a generic EPS and scaled to **any** size without loss of resolution.
You will, however, need to use the correct resolution for any imported images. Television still requires 72 DPI, so any images placed in the document need to be 72 DPI at the dimensional size needed.