BANGOR, Maine — “ Hotel Impossible,” a reality television show that features struggling hotels and their extensive makeovers, is filming this week in Bangor.

Construction and film crews began unloading Monday at The Charles Inn on Broad Street in downtown Bangor.

Signs posted around the hotel cautioned passers-by that “Hotel Impossible” is shooting in the area and that anyone’s presence in the area would be deemed consent to be recorded for the show.

The Travel Channel show features veteran hotelier Anthony Melchiorri, who is shown secretly scouting a single hotel in each episode and identifying problems.

After meeting with hotel owners and staff, Melchiorri and his crew develop and implement a plan for physical, cosmetic and procedural changes to help the struggling business.

Built in 1873, the building has 30 rooms, an art gallery and a bar. Converted to a hotel in the early 1980s, it was previously the home of Viner’s Music.

Hotel owner Connie Boivin, who purchased the business in 2005, said the show has asked her to refer all media requests to a producer.

That producer was not immediately available for comment Monday afternoon. It was not clear when Travel Channel will air the episode featuring The Charles Inn.

The filming comes after an extensive revitalization of Bangor’s downtown area.

According to downtown coordinator Caitlin Brooke, the hotel has been a supportive partner in the effort to grow the downtown area by opening its space for local artists to display their work, housing the Penobscot Theatre’s visiting actors and hosting quarterly meetings for local business owners.

“We’re excited that they have been given this opportunity and look forward to the outcome,” she said of the publicity the show will provide the downtown.

Follow Evan Belanger on Twitter at @evanbelanger.