I purchased the Insignia IS-TV040924 (27" Flat-tube TV) and I have a older Hughes DirectTV receiver (HIRD-E11) and remote. I called Insignia at 1-877-467-4289 (www.insignia-products.com) and they advised that they use the same IR set that can be found on the following devices:

Orion
Emerson
Memorex
Sansui
Sylvania
Zenith

I was sucessful with the Emerson code 096 (after about 30 others).

Good Luck!

/Jeff