It's an evening of diverse Texas roots rock on Austin City Limits. First, San Angelo trio Los Lonely Boys consolidates its massive success with songs from Sacred, its latest slab of "Texican rock & roll." Then the Gourds bring their iconoclastic country/folk/Tex-Mex/Cajun rock to the stage with tunes from their latest album Heavy Ornamentals and crowd-pleasing favorites from their early years.