Just info here. 1991-2006 CBS Evening News theme is the longest-running CBS Evening News theme, lasting for 14 years, 9 months, and 25 days (November 11, 1991 to September 5, 2006) and most remembered CBS News theme at the time (it was also used by CBS Morning News during similar timeframe). It is the theme that associated with the majority of Dan Rather era as the anchor of the newscast (although 1987-1991 theme also associated with Rather's era, their usage were much short-lived than 1991 one). So, if anyone watching Dan Rather's tenure as the anchor of the program during 1991 to 2005, anyone will remember this theme. It is composed by Patterson, Walz and Fox Music Productions. Although it contains the signature melody of the 1987 theme by Trivers/Myers, all the other music is original.
Fun Fact: In the first six years of Dan Rather's tenure as the anchor of CBS Evening News (1981 to 1987), CBS News adhered to a policy, imposed by then-CBS President Frank Stanton, that prohibited the use of music. To distinguish itself and demonstrate that it used original footage, CBS chose to forgo music entirely.