As best I can find
http://www.statutes.legis.state.tx.u...E.16.htm#16.02
Texas is a one part consent state. As long as one party of the recording gives consent, it is legal to record. This specifically applies to oral communications but its all I can find on quick search. It may or may not apply to video.
My understanding from some comments on some lawyer sites is its legal to record anything and anyone without notice in your home or private property with a few exceptions. This typically also means an apartment, condo, etc. In general, there is no expectation of privacy when you are in someone else's home. Not so sure about a hotel room but maybe as it is your "residence" while your renting the room. Audio recording without notification or consent in some states is not allowed. I do not thing Texas is one of those however.
Use of such recordings however can be an entirely different issue. Sending those recordings to a website without consent of both parties so people can watch would most certainly be illegal. Most courts will allow a video recording from a private residence as evidence in court.
Avoid the audio part and you are most likely in the clear in your own residence.
Consult with a lawyer if you have any questions if you are planning to do this.