Air date: 2013-10-05

Runtime: 30 min

The twelfth season of Ask This Old House begins with Kevin teaching the guys how to use Twitter. Tom replaces an old, rusted bulkhead door. Richard discusses several ways to get hot water without waiting. And the guys ask "What Is It?"

Air date: 2013-10-12

Runtime: 30 min

Roger builds a garden bed for chile pepper plants in New Mexico. Richard repairs a leaky toilet with a worn out flange. And the guys ask "What Is It?"

Air date: 2013-10-19

Runtime: 30 min

Richard replaces a leaking kitchen faucet with a new hands-free model. Kevin explains rechargeable batteries. Roger installs a channel drain in a driveway to divert rainwater. And the guys ask "What Is It?"

Air date: 2013-10-26

Runtime: 30 min

Installing a pre-hung exterior door. How to use large containers for shading around the home.

Air date: 2013-11-02

Runtime: 30 min

A member of the team learns about styles prevalent in Santa Fe, N.M. Roger teaches the proper way to use a wheelbarrow. How to install a shade sail to a deck. Richard installs a hybrid water heater.

Air date: 2013-11-09

Runtime: 30 min

Tommy replaces a leaky skylight. Richard quiets a noisy toilet.

Air date: 2013-11-16

Runtime: 30 min

Roger transplants a specimen maple tree. Fixing an underground master bathroom.

Air date: 2013-11-23

Runtime: 30 min

How to make improvements to make your home safer during a tornado, hurricane and power failure. A meteorologist describes how weather is changing and what homeowners should do to prepare.

Air date: 2014-01-04

Runtime: 30 min

Tom demonstrates many uses for a router. Richard replaces an air conditioning unit that freezes when it runs. And the guys ask "What Is It?"

Air date: 2014-01-11

Runtime: 30 min

Installing an irrigation system designed for a desert climate; new style of heat-pump water heater; reusing an old garden hose reel.

Air date: 2014-01-18

Runtime: 30 min

Installing crown molding; replacing a rotted fence post; difference between cement, concrete and mortar.

Air date: 2014-01-25

Runtime: 30 min

Installing a Whole-House Humidifier in North Carolina; Installing Hardwired Smoke and Carbon Monoxide Detectors.

Air date: 2014-02-01

Runtime: 30 min

"Waffle Gardening" in Santa Fe; Adding Mechanical Dampers to a Forced-Air Heating System

Air date: 2014-02-08

Runtime: 30 min

Repairing a Rotted Porch Post; Dealing With High Indoor Humidity

Air date: 2014-02-15

Runtime: 30 min

Fitting a Mattress Up a Narrow Staircase; Repairing a Light-Switch in Seattle

Air date: 2014-02-22

Runtime: 30 min

Installing a Clawfoot Tub With Shower; Installing a Permanent Fire Escape in a Bedroom

Air date: 2014-03-01

Runtime: 30 min

Building a high tunnel greenhouse; converting three recessed kitchen lights into three pendants. Selecting pliers and wrenches.

Air date: 2014-03-08

Runtime: 30 min

Quieting a Squealing Shower; A DIY-Friendly Security System and Video Camera

Air date: 2014-03-15

Runtime: 30 min

How to start plants from seed. How to prevent an outdoor hose spigot from freezing. How to build a movable kitchen island.

Air date: 2014-03-22

Runtime: 30 min

Planting a low-cost privacy screen; and sealing ductwork without removing the walls.

Air date: 2014-03-29

Runtime: 30 min

Replacing a shower valve; repairing damage to a baseboard; keeping a lawn mower in excellent shape.

Air date: 2014-04-05

Runtime: 30 min

Celebrating 300 episodes of "Ask This Old House" with a review of favorite moments.

Air date: 2014-04-12

Runtime: 30 min

Building a simple table from solid fir; removing tree stumps; solar energy.

Air date: 2014-04-19

Runtime: 30 min

Modifying a bathroom and stairs to make them wheelchair accessible; rebuilding dangerous staircase.

Air date: 2014-04-26

Runtime: 30 min

Replacing fluorescent under-cabinet lights with LED fixtures; working with concrete.

Air date: 2014-05-03

Runtime: 30 min

Installing new cabinets; countertop options; the home and restaurant kitchens of chef Michael Symon.