Das Ist Lustig can be found at the following restaurants: 

Regularly at Rudi Lechner's in Houston, Texas. 

Periodically at King's Biergarten in Pearland, Texas.

Periodically at Bavarian Brauhaus in Bryan, Texas.

When they go on tour out of state, they look for restaurants along the way where they can drop in and play a show or two.  They've entertained at Turek's Tavern in Choctaw, OK, Siegi's Restaurant in Tulsa, OK, the Hofbrau Beer Garden in Panama City Beach, FL and the Old Stein Inn in Edgewater MD.  The food and service at each of these locations was excellent and most likely still is.  German beer and gemutlichkeit are always flowing.
Rudi lechner banner draft 1

Rudi Lechner's Restaurant
  Live Music Wednesdays, Fridays and Saturdays!
Entertainment Schedule 2018:
Wed Fri Sat 14, 16 - 17 Das Ist Lustig
Wed Fri Sat 21, 23 - 24 Das Ist Lustig
Wed 28 Das Ist Lustig
Fri Sat 2 - 3 JungeMeisters
Wed 7 Wolf and Bill
Fri Sat 9 - 10 Auf Geht's
Wed Fri Sat 14, 16 - 17 Randy, Blair and Lynlee
Wed 21 Das Ist Lustig
Fri 23 Matt Tolentino
Sat 24 Shelia Lee and Bill Palmer
Wed, Fri 28, 30 Auf Geht's
Sat 31 Wolf and Bill
Wed, Fri - Sat 4, 6 - 7 Auf Geht's
Wed 11 Bob Suttie and Mike Gest
Fri - Sat 13 - 14 Auf Geht's
Wed 18 Bob Suttie and Mike Gest
Fri 20 Wolf and Bill
Sat Auf Geht's
Wed 25 Auf Geht's
Fri - Sat 27-28 TBA
Wed, Fri 2, 4 Das Ist Lustig
Sat 5 Bob Suttie and Richard
Wed 9 Auf Geht's
Fri 11 Wolf and Bill
Sat 12 Auf Geht's
Wed 16 Bob Suttie and Mike Gest
Fri - Sat 18-19 Wolf and Bill
Wed, Fri - Sat 23, 25 - 26 Das Ist Lustig

schedule subject to change