My wife wanted to try out a new place on a whim recently (Rock & Rye Bar) and I was carrying, so I did a quick search on the TABC lookup site and found this:
So in we went and other than a handful of sandwiches on the menu, this place is a drinking bar. Intrigued, I decided to do some research and found TGC 411.204, which governs the 51% sign, has an easter egg. Over the last few years, a lot (~1200) of what used to be pure bars got themselves a food & beverage certificate. TABC, ever mindful of keeping the public inquiry system up to date, captured the effect this had on the 51% sign.
Sec. 411.204. NOTICE REQUIRED ON CERTAIN PREMISES. (a) A business that has a permit or license issued under Chapter 25, 28, 32, 69, or 74, Alcoholic Beverage Code, and that derives 51 percent or more of its income from the sale of alcoholic beverages for on-premises consumption as determined by the Texas Alcoholic Beverage Commission under Section 104.06, Alcoholic Beverage Code, shall prominently display at each entrance to the business premises a sign that complies with the requirements of Subsection (c).
(b) A hospital licensed under Chapter 241, Health and Safety Code, or a nursing home licensed under Chapter 242, Health and Safety Code, shall prominently display at each entrance to the hospital or nursing home, as appropriate, a sign that complies with the requirements of Subsection (c) other than the requirement that the sign include on its face the number "51".
(c) The sign required under Subsections (a) and (b) must give notice in both English and Spanish that it is unlawful for a person licensed under this subchapter to carry a handgun on the premises. The sign must appear in contrasting colors with block letters at least one inch in height and must include on its face the number "51" printed in solid red at least five inches in height. The sign shall be displayed in a conspicuous manner clearly visible to the public.
(d) Repealed by Acts 2021, 87th Leg., R.S., Ch. 809 (H.B. 1927), Sec. 26(6), eff. September 1, 2021.
(e) This section does not apply to a business that has a food and beverage certificate issued under the Alcoholic Beverage Code.
While I'm not advocating for carrying while intoxicated, I would encourage you to actively review the TABC Public Inquiry System anytime you see a 51% sign (or think a place may be a 51% place) to verify it's status.