Land speed time trials make for very POOR TV and whether you like it or not, total non-interest in the public and extremely little interest by other racing venues. A car running every 3 or 4 minutes in some unheard of class (at least understandable by anyone out side of us) is not fun or entertaining TV.
I know I'll get bad mouthed for this but would you rather watch a NASCAR race at Talledega or a 4 Cylinder stock car class at an unheard of 3/8 mile dirt track. It is what it is and there is no $$$ in it.