While other twins were hitting the Internet to point out that not all twins are like the ones featured on "Twintervention" (Wed., 10 p.m. ET on TLC), it nevertheless proved a fascinating look into the codependency that some twins come to feel for one another.Particularly fascinating were Lisa and Debbie, who were so connected that they both lived together, with Debbie's husband. He was understanding -- enabling? -- of their "twinship," as ...